If you have the money I say go with the TM. You won't regret it. I still love my TM MP5 SD5 because it feels a little more solid and its just got an edge over a UTG. The trigger feel is a little better. ROF slightly higher but not really noticable...
YANHCHAN'S AIRSMITHING: AEG repair/Tune up/Upgrades V2/V3 mechboxes, rewiring/reconnecting.
Ask not what your country can do for you; ask what you can do for your country ~John F. Kennedy