Join Date: Dec 2011
Location: Morris County, New Joisey
Although I have no firsthand experience with it, that Grizzly is a lot more substantial planer than the DW734. That may or may not be important to you, depending on your usage. For my purposes, I bought the DW735, but I only do relatively small amounts of planing, shop space is limited, etc. The 734 would have served me just as well.
If you go to look at it, I'd think that the key things to be aware of would be how smoothly it runs, is there any loud bearing noise coming from it, does it bog down at all, does it feed smoothly, does it leave a smooth finish, etc. If it can't be demonstrated, I wouldn't buy it.
If it works well, the price seems reasonable to me; others will have other opinions.