I've found that it holds on to 3G way better than 4S but that when it does fall back on E it doesn't switch back as easily as the 4S. I'm guessing this should be a problem only for the limited number of people who don't have 3G coverage, but slightly annoying nonetheless.
Excellent, appreciate the feedback. I recently transferred to Malaysia and have found the 4S signal to be not as good as some other phones and at one point bought the One X to compare and did find the HTC to have better 3G. Looks like an i5 may be on the cards when they release here next month.