I love this gun! Very nice construction has made it sturdy, reliable and overall very consistent with almost no issues in performance to report. The only thing is that one of the mags stopped winding (internal gearing issue) which I tried to fix, but was unable to resolve. That said, it is my opinion a small price to pay for such a great gun. The TSD is also at a great price point for an MK36C that is perhaps the best of the bunch. It's an easy 5 stars not considering mag issues.
Great construction (external & internal) that should take upgrades like a champ
Lots of rail space
Dead accurate at 75 ft, (w/ .20 the grouping getting progressively smaller w/ .25, .26 BIO, and .28)
Decent rof (Intellect 9.6 nunchuk)
Cool features like firing hand mag release, ambidextrous (metal!) charging handle, and fire selector
Decent accuracy for mid-range engagement
Hop up is metal and uber easy to adjust
I'm gonna have to get picky...
I'd like a slightly higher fps (easy upgrade)
Mag reliability and wobbly in mag well (easily fixed with electrical tape)
Stock a little wobbly when folded
Rating: [5 of 5 Stars!]