I'll check it out for sure. My husband pretty much plays mobile games and the only console game he's ever been into was Diablo III (great couch co-op) so maybe this'll get him to play some games with me again.
Blizz completely and utterly botched that reveal..then instead of fessing up and going all "well yeah I guess...uh our fans want something other than a mobile game" they go full snark and "butthurt" mode ...So...I really really REALLY dont care for it ...nor do I care much for whatever they might announce regarding Diablo.
Companies make phone games out of existing IPs to hunt for an expanded audience. That usually equals an audience that doesn't even know forums like Era are a thing. we're not a great way judge hype for a phone game.
My biggest question is whether or not it will have any hooks back into Diablo 4 when that is inevitably released. I have minor interest in playing a game like that exclusively on my phone other than when I'm stuck somewhere with nothing else to do, but if I were able to run a few rifts in Diablo Immortal to earn crafting materials for my main Battle.net character on PC then I would be much more likely to use it as my go-to time waster when in an waiting room or car ride. I'm really surprised that no other GaaS has done this yet, other than things like Fortnight that have the full game available. If there were a companion game for stuff like Destiny 2 or Warframe that fed back into my main characters I'd be all over those, even as somebody who does almost no mobile gaming now.
I don't expect much and don't usually stick to phone games much other than going and playing Pokemon Go while walking/drinking with my wife but I'll try it. I see no reason not to give it a chance and I can just quit if it sucks.