One shouldn't have to void the warranty of one's device to be rid of malicious software.
and then have it freeze and restart every day -__- (I guess is just my particular experience and might not apply to everyone)
To be fair. I didn't do this I'm running what came on it and mine freezes and restarts several times a day anyway...
Any Android 2.x I've touched was unusable piece of .. software. I seriously don't see how they dared to sell it to people. Can't even imagine what 1.x looked like. My experience with 4.x is much better in this regard.