I bought this gun secondhand for much cheaper than the retail, and it was definitely worth my $. It is a perfect cqb gun with an insane rate of fire on a 9.6 large type. Awesome B&T trademarks and other MP5 engravings. I like the metal shell over the body, and the built in flashlight with the pressure pad is perfect for night games, and even works like a tracer (sort of).
Pros:
VERY good stock R.O.F.
Metal (some, but not too heavy)
ambidextrous fire selector
Metal Hi-Cap
Good-Looking T.M.s
Flashlight is a great addition
Cons:
Selector switch comes loose and even comes off very often (Only major con)
Not the best accuracy (but hey, it is a sub gun)
Mag does wobble a bit
Cheap plastic dust cover
Price (but it has the T.M.s and metal over the body, and it's Classic Army)
Overall, this is an amazing cqb gun, but is it worth the $300? If you are looking for a strictly cqb gun, then yes. But if you want a multi-purpose gun, go for something with a longer barrel.