Your review: Works ok but has a few issues depending on how it's used. The sleeve insert accumulates paint or whatever product being drained between it and the housing. That glues it in place. That's a problem when it needs to be removed to puncture a larger can. The drain is pretty small it can take time to drain. Need to be wrap a rag around the can to keep material from blowing back at you. Material eventually clogs the drain, so you'll have to do something to clean it occasionally. It's ok, but don't expect it to be a speedy process if you're doing a lot of cans.
Pros: Accommodates different sized cans.
Cons: Requires maintenance.