Bought D2:Ressurcted on sale couple of days ago. Still best Diablo there is. So much fun. And its perfect to kill time until D4 lands.Obviously? It's the best in the series.
And thanks to Ressurected, it's brain-dead easy to get into. And it's often updated. I suspect that some may not be on the same vibe and not get into it because the Normal difficulty is very easy and the first couple of acts are slow.. so keep that in mind. It has the best loot itemization ever, so it'll hook you.
I wouldn't invest much time into it tho, because you'll risk getting burned out. Diablo II (and the original Diablo) have a thick, memorable atmosphere heightened by a brilliant soundtrack and art design. The story is very memorable as well, very unique take on angels and demons. Casually play the Normal difficulty soaking up that atmosphere and move on. I would also highly recommend checking the original Diablo as well. Grab it off GOG.com and apply the HD mod for it.
It is always, always worth checking out a series roots. It gives you a better frame of reference and knowledge regarding lore, story, plot, etc. which significantly enhances your experience with a later entry.
The only thing that D2 struggles with it inventory management on consoles, its not the best.