I was attracted to this Samsung flip phone mainly because of its size and external caller ID, and because of Amazon's unbeatable "make money after purchase" rebate deal. After having it for about 6 months, I'm ready to trade it in. Here's what I dislike about it:1. Its reception is fair at best. I often have to stand by windows/go outside to get a clearer signal even when I have plenty of signal bars.2. The preloaded ringtones are all obnoxious. There's not a "normal" ring in the bunch (I eventually had to download one).3. Menu access response times are laggy (often 1- to 2-second pause after a button is pushed before a menu will come up, sometimes longer).4. The time and date must be manually changed; the phone isn't linked to a time server (can be a hassle if you change time zones frequently).5. When it's flipped shut, sometimes the phone will turn off without warning.6. The phone's screen is hard to read in direct sunlight.7. The up/down key on the side of the phone does not control anything useful, such as changing ring volume, etc, when the phone is not in use. Instead it controls the keypad volume (yeah, that's REALLY useful...)What I do like about the E105:1. It's very small and light2. It's very durable.3. The battery life is decent.4. The external display is nice.In conclusion, the cons outweigh the pros by far... when my contract is up I'll probably stick with T-Mobile but definitely switch phones.