First time that thing slams shut with with your arm in the chamber you will be rewarded with a trip to the ER.
Also concerned that it will take 2 hands to close it (one for the door and one to release the gravity catch). I usually have something in one hand when I need to open the door on mine and would find the 2 handed close and the risk of slamming shut a deal breaker for me.
I just put a counterweight on mine and let the weight lay back on the tank. I open and close my heavy door with 1 hand and I know it's either open or closed.