Impossible to tell for sure, not being able to see the front panel, but from the back, it looks identical (like more than a few others I suspect) to my MillerMatic 35s. It has some unique features that are quite useful for thin work, but can be used for heavier materials as well. It's not fancy, other than the sheet metal features. You have to manually change taps on the transformer output to change the output, but the wire feed is enclosed, which helps it stay clean. Overall, I like the machine, but it's not my go-to MIG. That would be the Lincoln CV-300 with a piggyback LN-7 wirefeed. If you can pick that Miller for the right price, go get it. I've burned about 30 rolls of wire in mine and have no complaints.
And for gp welding, I normally use straight CO2. The little spatter doesn't usually bother me, but if it does I use Spattershield or hit it with a flapwheel.