Things I liked:Handy, well made, affordable price, accurate, powerful, lots of fun to shoot. Things I would have changed:Iron sights would be nice. Maybe some fiber optics. What others should know:The trigger on mine had more curve than I liked. It was easy to straighten as the trigger is brass. I think it's an excellent value. I plan on installing sling swivels and a bipod on mine.
Things I liked:It's very handy, and well made. It holds a lot of pellets, out of the way, but within easy reach. The price is great. It sure beats carrying tins of pellets out in the field. Things I would have changed:Not a thing. What others should know:It's a fantastic deal. You need a few of these. I need a few more of these. At this price, you can afford to have one of these for each type/brand of pellet you shoot.
Things I liked:Well made and works very well. I've used it to fill a bulk filled QB78, a BAM B50, and a SamYang 909 Light Hunter. Good for filling from empty, or just topping off after a few shots.
Things I would have changed:I just wish it were a little taller, though it's not really a problem. What others should know:Hand pumping a bulk filled CO2 rifle is easy. Hand pumping a Sam Yang Big Bore 909 Light Hunter with dual air reservoirs and a total air volume of 380cc is a bit of a workout, but nowhere near as bad as I've heard some people say. I don't think it's as bad as pumping up a car tire with a bicycle pump. I consider it money well spent, as I plan on filling my 2 PCPs from the bottle and just topping them off with this.
I also plan on using this to run my QB78 off air instead of CO2 in the winter time, for better cold weather performance.
It's really not bad, try one. I'm glad I did.