No, the sides don't go away. You really have to be careful w/ deca, just watch it as you go. The voice will start cracking and if you can handle that and you're cool w/ it then stay on. If not, get off ASAP because it WILL get worse. As for the other sides, enlargement, hair growth, acne. WATCH EVERYTHING!!!! I can't say it enough. I'm ok w/ every side I've gotten besides my voice being a little deeper (only because others ask about it and its so irritating!). Otherwise definitely worth gaining the 25 lbs of muscle I put on in my cycle. Just make sure you are observant as you can and you'll feel if things are changing...
Let me know if you have any other questions.
Oh, how long were you planning on running this cycle for??
AJ