Air skimmers

[fortheloveofcrabs]

Has anybody used these air-drivin skimmers (coralife and a few other companies make them). I've heard everything from they really suck, to they get the job done - but of cource from people who have never used them. Anybody here use/used one? Any thoughts? It is going on a 16 bow, with a 5.5 sump, so a regular skimmer would just be a bit much. Thoughts?

Thanks!