First off, this is a link to a video of another reviewer: http://www.youtube.com/watch?v=lawesHtzv20&feature=related
A quick review of the Glock 17 look a like from Tactical Force from me would be:
Cost: Pyramyd Air $60, use the coupon Nutnfancy and it will take $6 off the cost.
High quality nylon fiber polymer grip (similar to real Glocks)
Amazing C02 efficiency (200+ rounds per 12g cartridge)
Fiber Optic sights, great for darker areas
Loud when shot
Working safe action trigger (just like the real thing)!
Slide locks back when you are out of ammo
Easy to use C02
Rail system for lasers, lights, etc.
Looks very similar to the Glock 17.
Advertised at 400 FPS (more realistically at 300)
Magazine is very close to real gun magazine capacity
Hard(Impossible) to find extra magazines
Low capacity magazine (15) - Not too bad though
Not field strippable
Slide will sometimes get stuck back (but the gun can still fire)
Great value for the price. You will not be disappointed from buying this highly reliable great looking Glock 17 clone. This gun is producer by Umarex, a high quality airgun and airsoft supplier. Just like the real Glock, this gun is light weight, 1.75 lb which is close to an unloaded Glock 17. With a length of 7.25" it is perfect for carrying in a holster, or potentially in a waste band. The blowback on this pistol has a nice kick and the metal slide makes a nice sound when fired. The sights on this gun are amazing, fiber optic sights really give the gun an even greater value. For this gun you are going to need to use at least .2g bb's. If you use .12g bb's your gun will shoot less accurate and could potentially break faster.
The only think I have a problem with is that the gun cannot be field stripped. This means that you won't be able to oil the internals; but I think that won't be a problem. Umarex, who makes this gun, is a very reliable manufacturer. Umarex will make sure you get a new gun if the old one breaks (I don't know the time period for the warranty).