I've been meaning to come back to this thread and post my experiences with the unit.
I did go with this model and I'm happy with it. It's big enough for my modest brewing requirements. It will hold two 6 gal Better Bottle fermenters. However, I've never done two simultaneous fermentations (I will this weekend), so I don't know how comfortably two fermenters plus a blow off jar will fit. We'll see.
My experiences have been positive so far. The unit cools nicely and relatively fast. It's not a big box, so it doesn't take too much space. The compressor "hump" is handy for keeping smaller things cooled down, like yeast starters, mason jars with washed yeast, etc. Two baskets are included with the freezer, but I only use one and only occasionally. Paired with a digital temp controller, the freezer makes for quite a nice fermentation chamber, which is what I'm using it for.
Now, there are some drawbacks. Because I'm operating it as a fancy refrigerator, the freezer gets condensation on its interior walls and it ends up running down to the floor of the unit. I'm having to make sure I keep the interior dry, or at least wiped off. I hear some people put dehumidifier stuff in there, but I haven't looked into that. As a result of the water, the unit is already showing some minor rust spots. I understand freezers don't have the capability to handle condensation that refrigerators do. Mold is a risk with this.
Getting heavy carboys (or, in my case, Better Bottles) into and out of the freezer can be a bit of a challenge. At 5'6", I have to bend out of balance to do it and that puts pressure on my back. I don't know what the effect would be on a taller person, maybe not as much, but I imagine a shorter person might have a harder time. Luckily, the compressor hump is useful for this. Moving fermenters into and out of the freezer has become a two-step process. Regardless of the direction I'm going, I first place the fermenter on the hump, change grips, and then proceed. I don't know how this is going to work out with two fermenters in the box. I've seen harnesses you can get for the carboys that supposedly make it easier to move them into/out of the box, but I haven't tried one yet.
Overall, I'm quite happy with the purchase. It's awesome to be able to do temp control on not only fermentations, but also on yeast starters. I'll just have to deal with the issue of moving fermenters around.
One final thing to keep in mind is that it's probably better to have a thermowell with either a cap or a rubber stopper for the temp controller's probe to get a reading from the center of the wort. I've investigated a variety of ways to get good temp control, but I think a thermowell is the best. I haven't implemented that yet. At the moment the probe is reading ambient air and, while that works OK, it takes much longer for the wort to achieve the target temperature.
Hope this helps. Sorry for the long post.