Got it to install finally after getting install errors but it crashes every hour or so. Other than that, it's fun. There's more classes to play as and they all have unique skills that unlock and upgrade as you level up. It has a ton of quality of life updates that make it more like Diablo 2. There's a couple stashes in town with tons of tabs so you probably won't run out of stash space. You'll be doing every quest that's possible in the original game in one playthrough and some have been updated. Once you quit and come back, the levels will be reset so there's no issue of needing to start a new run to be able to keep killing and looting. There's a ton more enemies in every level now and with the fact that levels reset when you quit and come back, it makes it a bit grindy. Try it out if you have Diablo already. It's a free mod.
