Is one of the best 3 guns you can get for under $300. There are no external moving parts so there's little chance dirt or sand can get in your gun and mess it up. The valve is awesome so this gun is great in winetr play.
The trigger pull isn't the best. There are new models with lighter triggers. There are no double-trigger setups avaible for the gun unless you get a custom job. There aren't many upgrades. It's kinda loud but thats not a major factor. The stock barrel is a piece of crap, but everyone always ends up buying an aftermarket barrel so that shouldn't be that bad. You should also by a venturi bolt as an aftermarket accessory.
-The gun is very reliable and if anything goes wroung ACI will fix it free of charge even if you don't have the 1-year warranty on your gun.
-Best low-end gun there is.
-Bad stock barrel but many people replace their stocks anyways.