I'm very happy with mine also. I would love to always be in stereo but for a lot of situations one speaker handles the job well. For the money its a steal deal. Glad I waited with my shopping.
I'm also looking at the 510's for a small stereo practice setup and monitors for the big rig. Got a great price on those too as I belive they're also about to be discontinued.

Good luck with yours.
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Bill in SC --- Roland BK9 (2) Roland BK7M, Roland PK5 Pedals, Roland FP90, Roland CM30 (2), JBL Eon Ones (2) JBL 610 Monitor, Behringer Sub, EV mics, Apple iPad (2) Behringer DJ mixer