Review: HTC One S for T-Mobile
The stock Android 4.0 browser is decent, though I find that HTC's modifications gum up the user interface a bit. The controls are not intuitive, and some secondary tasks can only be found through non-obvious swiping gestures. As far as rendering web pages goes over T-Mobile's HSPA+ network, it does just fine. I was really quite impressed with how fast the browser operates and how good web sites look on the display. Do yourself a favor, though, and download the beta version of Chrome for Android. It is a fantastic browser that's available to Android 4.0 devices, and worth skipping the stock browser for. It's faster, cleaner, and more intuitive to use.
HTC's Sense 4.0 lets you fine-tune nearly every facet of the One S's behavior and appearance. In fact, it probably offers too much flexibility.
The modifications that matter most to most people, such as scenes, skins, wallpapers, and ringtones are a web of interlaced and related settings that take some time to learn to use properly. The most useful tool of the entire UI are those that let you customize the lock screen shortcuts.