Had an HTC desire back in 2010, then moved to iphone.
Recently got the HTC one M8 and love it. I've got used to the size quite quick, but I think I would like it to be a tad smaller. My biggest dislike though this the volume button, and silence options. I like hold the iphone had the silence as a flick switch seperate from the volume. In regards the the volume the HTC buttons aren't firm enough, when I pick the phone up my fingers are usually placed around the volume and the number of times turned the volume to max or min is silly. iPhones need a far firmer push of the button