A price value alternative to "Nerf Stampede"

The gun I bought for my son (14), here is his expert opinion on:
I've wanted this weapon, because I a cheaper and smaller alternative to "Nerf Stampede" hoped for in her. I have the same to say that there is a serious difference between the two arms: The "Stryfe" is semi-automatic, so you have to pull the trigger again for each shot. In the fully automatic "Stampede", however you can leave your finger on the trigger until the magazine is empty.
The following points are noticed during use:

+++ You can also use a drum magazine with a capacity of 35 arrows shot instead of the supplied small magazine.
--- If the drum magazine hooked, so it is not kept well and slips a little down. Thus, the arrow is not shot and the magazine must be pushed manually.

+++ It lies well in the hand and there are two "tacticle Rails", where you can install additional equipment (eg scope).
--- As with any new Blaster "Nerf Elite" series are the "tacticle Rails" very thin, wherefore the essays quite shake. Besides, what is a "tacticle Rail" under the gun?

+++ It can be barrel extension and shoulder support mount
--- Neither of these is included

--- Often in a small magazine, the last shot is not fired, but remains in the magazine and can not be shot down.

+++ Very precise for automatic Blaster

+++ It is not an energy consumer as the "Stampede", but comes with a pack of batteries long.

My conclusion: The purchase was worth it because it's a good alternative to the much more expensive "Stampede", even if you have to pull the trigger again for each shot.