Do you speak from experience? I have tiles of all sizes on my display and have had no trouble at all with accuracy. The larger sizes are for live tiles, which I find rather handy. The whole Windows Phone UI has a consistency and fluidity that you don't find on Android, while the WP hardware is way cheaper than the equivalent iPhone (and you don't have to use the execrable iTunes, thank God). Pretty much all the apps I want are available and work well, though I admit I'm not much of an app junky.