I have the same planer. It works great. Mines a 1 phase, 2 hp motor.
I think it's a great planer. I had a 12" Boice-Crane, before it, and a PM lunchbox, before that. The B-C was a beast, but with direct drive, took up a lot of space.
The difference between the RC-33 and the Lunchbox is huge. Not even considering the noise!
If it's in good shape, it's worth $300, if you are a person who can swap motors. I think the RC-33 with sharp knives, and a 1 hp motor would do a decent job. Not as big max cut, but how often do you have to do that.
If I needed a planer, I'd buy it and put a spare 1hp motor, I have on it, and wait for a 2hp to come along.
The table doesn't move, which people like for using in/out feed devices. With just 2x's or 1x6's I just feed in and 1/2 way thru switch to the outfeed side.
RC-33 vs. Lunchbox Remember the old saying, "You could have had a V-8" Buy the RC-33 is my vote. If your grand kids like woodworking, they will love it.