As a Common international business traveller,, I know very well the issues with hotel wifi.
First of, there is the dodgy reception interference issue. What compounds this is as soon as the wifi is flaky in a hotel, everybody gets the 3/4g wifi hotspots out compounding the problem. My solution is a high power (600mw) usb wifi adapter and high gain antenna in my suitcase. Cuts through all the crap. This one was a boon in a hotel in Lawrence Kansas, and whenever I get stuck in THAT room with sucking wifi reception.
Second is the throttling issue, where each device is throttle. Once I found In a nice hotel in Orange county had wifi hard throttle to 1mbps, I also found I could use the external USB adapter, the laptops internal adapter, and the rooms wired ethernet, and carefully created routing table, to get 3x 1 mbps streams....
I've once had the whole wifi in a hilton hotel come down, after the main login server got a virus, (short hills NJ). On the other hand the best wifi I've ever had at a hotel was at a hilton group hotel (doubletree in chesterfield MO).