Light, Somewhat fast, durable, good battery life, Very simple
I really like this hopper even if it is a spyder and only feeds 17 bps. I got this from a friend who didn't want it so I took it off his hands. I put this on my pmr and it kept up just fine even when my gun was on psp ramping. As long as i kept it under 17 bps it was perfectly fine. I like it because it doesn't use 6 AA batteries like my halo and is no where as near as heavy. It has a very good battery life with the 9vl.
Over all I like it. If you don't plan on blazing past 17 bps and dont want a top of the line complicated loader get this.