Smart Parts Ion:
Freak 06 front+back+insert - 14"
Dye Sticky 3
New designz QEV
Kila magnetic detents
Halo b loader
Evolution II loader
PMI Pure Energy Tank- 45ci/4500psi
Empire 06 Tank Cover
Psychoballistics Z Drop Forward
Low profile, durable, light, looks, speed, price
Personally, I choose to use this hopper over the halo. It is a lower profile and lighter weight hopper, which is great for my ion, and I don't need the +3/4 bps. Not to mention it looks great. The only critique I have about this hopper is the lid. Iits not easy to open, especially when you're in the middle of a game. It resists when you open and is hard to clamp in place. The idea is that it closes fast, but I think its more important to open faster than to close.
Id go for this product if you're looking for a good hopper that doesn't cost as much as the halo. Personally, this and the halo are picked based on preference. If you want the extra bps and dont mind a little more weight then go for the halo, but if you want a lower profile hopper and dont mind losing a few bps then this is the one for you. I'll give it a 9 because of the lid.