Ah, this is one of them war questions. No matter what I say right now, in Poland I'd have a mininum of 20 daughter posts within seconds, 16 of which were calling me various names, with differing levels of vulgarity. Truth to be told, I wrote that number mostly under the influence of emotions, but I'll try to entertain your question as best as possible.
This all depends on whom do you treat as a "governing entity" in wartime Poland. We've got a choice between the invading forces, the Government-In-Exile, or the various leftwing/rightwing Resistance movements who had localized, but enforced "power". For obvious reasons i will not discuss the invaders. I will instead focus on the GIO. Operating from abroad, they had limited capability of actually governing anything, nevertheless their word was the final word - it was just very hard to get them to say anything at all due to communication issues, so the AK was mostly locally governed.
WW2 Poland was hell. No movie so far tells the whole story. We can talk all we want about the concentration camps, forced labour, or forced expulsion - these issues are so hard, so convoluted, but also so fresh in the minds of the older generation, that there is really no way to try to say anything without convoluting those issues even more - some will call you insensitive and some will tell you you're lying. The smart thing to do is just not discuss those and wait for the eventual untangling of this mess.
Following are my own opinions supported mostly by history books and interviews with the veterans themselves. This is not a complete picture. This is most probably not entirely true. This is very much biased.
The AK had free reign, but couldn't control all of its assets properly. Logistical problems, differing political backgrounds for some companies and the whole damn reality of it all were the main problems. There was a need for restructuring everything, appointing officers and establishing contact, which pre-Internet was very hard to do - and it was doable, but the AK decided that saving lives was more important and focused on a fighting retreat, which inevitably caused those left behind the lines to lose contact with Base. This is the first major decision i do not agree with - it was much better to, while leading a fighting retreat, leave localized representatives of the AK for making sure there was any method of organizing a guerilla movement. Alas, it was not so. Those left behind the lines, with help from the local populace, formed the local Polish Resistant Movements and had localized power over different regions. Their policies were drastically different from each other, some would be even considered barbaric by todays standards. The AK issued an official statement that such barbaric practices are considered treason and the perpetrators were subject to penalty of death by shooting. The statements were sometimes, unfortunately, not received or outright ignored and a small amount of self-governed cells of the PRM, while focusing on fighting off the invaders, were also realizing their own xenophobic and racist policies.
In essence, Poland as a singular-governed entity, ceased to exist in any other form than people living on it's territory called themselves Polish.
About this part becomes incredibly hazy due to differing and conflicting accounts - the best we have are from the biggest cities, like Warsaw, thanks to the very active Polish Underground, who saved lots of documents and photos. We have confirmed that there was a central and effective organization within Warsaw, with lots and lots of sabotaging activity done. There was a central governing entity called the Polish Underground State, which, even though very limited in scope, provided food, safe passage and quarters to undesirables. Mentioning Warsaw without mentioning the Warsaw Uprising just won't do: although opinions are divided whether it was an important patriotic drive or senseless loss of life, the truth is the Uprising was organized under information that we would have outside support both from the UK/USA side (Roosevelt and Churchill were vehemetely discussing that with Stalin at the time, who wouldn't budge - but to Churchill's credit, he sent supply airdrops to Warsaw ignoring Stalin's no-fly directive, while Roosevelt waited for the goahead) and from the Russians. What followed was the fighters fighting entirely alone, and the Russians... well, the Russians were waiting for us to "tire out" the Germans so that they could step triumphantly inside Warsaw as the beloved rescuers. What actually happened is Germans regrouping and basically levelling Warsaw to the fucking ground, with Polish forces having no other choice than to surrender - Stalin's forces entered Warsaw two whole years of retributory hell later.
Was the Warsaw Uprising a good choice? Honestly, I have no idea - this was a turning point for the whole war, that's for sure, but if placed under command at that time, would I give the order? With help promised from the Allies, hell yes I would. It's just a shame being royally fucked over by everyone.
But, as the old saying goes, Madry Polak Po Szkodzie ("it's easy to be wise after the event").