It depends on what you are after. I own the Sony D50 and from what I've heard from it, I'd choose it or the similar Sony M10 over the DR2d (also own that) for 2ch work.
If you want to do 4ch work, or at least have the option, the DR2d is a good choice for a small, cheap 4ch recorder (though granted, it has little competition at its size and price level for 4ch).
The DR2d can overload fairly easily though, so you will either need to keep the VMS5U set low or get a set of attenuator cables. I run the DR2d out of my Lunatec V3, which I keep cranked since I also run that digitally into the D50, so I use a set of attenuator cables between the V3 and DR2d.