Glitches?! Thinking about getting another one?

I have had the EnV Touch since July. I had it replaced once during the 30 day thing, so it was a brand new phone. Anyways now this phone has some problems.
1.) Turns off randomly. Happens mostly everyday. More than once a day.
2.)When setting "my ringtones" as an internal arrow key short cut it's turns the phone offf then on. (Not so much a problem, and it's not really fixable, my friends EnV Touch does this also)
(Well it just cut off as I was viewing a text, now it cut off again.. ):  )
3.) Sometimes the screens go whack.
4.) Sometimes the phone screens turn off, but the keypad lights are on, so I have to take out the battery and re turn on the phone
That is about all I can think of off the top of my head. The turning off is really annoying though. Once it was off for 2 or 3 hours, and I didn't notice. I want to go back and get another one. Do they give you a refurb? I am afraid if they give me a refurb it will be worse.
*Also, how many times do you have to go back to get another phone, before you can get another one. I love the env touch, but if it keeps turning off, I might end up getting the samsung rougue or env3.