If it were self-aware, it could have intercepted and re-written this review for its own benefit, and you'd never know it...
Does what it's supposed to do - I've been using it constantly for just about 2 years now with few problems; Tested successfully with active-backup and adaptive load balancing link aggregation (neither require special switch support.
It has locked up on me a few times; but always when doing something "weird" (changing aggregation mode; removing/adding slaves; etc.) A quick power cycle has always fixed it - probably to flush the MAC table or something