The Brownings aren't great but as long as you follow the rule of cocking the hammer or racking the slide before inserting a magazine they are OK.
The hop adjustment is a bit more of a pain than other pistols because you have to remove the inner barrel but if you use the same weight BBs then you should only have to set it once.
If you want a metal slide 1911 then WE, Umarex, VFC or Army Armament are decent.
If you want gas efficiency and don't mind a plastic body then Tokyo Marui are the standard.
Keep in mind all traditional looking 1911's (Non Hi-Capas) use a small magazine that doesn't hold much gas. (enough for one mag of BBs)
(The Tokyo Marui is more gas efficient as mentioned)