How much of an actual RPG is it, then? The bit's I've seen are mostly just shoot outs with pistols and rifles. Looks more like a lite FPS with some RPG elements tacked on. Like Borderlands but with far less interesting weapons. Do the guns ever get more interesting and actual futuristic spacey? if it has DNA seeking biological bullets than can be fired from 5 miles away, seeking out the person you've programmed a DNA match too, I may get it. But if all it is is space pistols, space rifles and a bit of space metal horse combat, might as well stick with RDR2.
Your character can become very specialised, and my character may be able to do things that yours cant, and vice versa. Even basic things like stealth, boost packs and ship systems targeting are unlocked via perks, which I think is pretty cool.
Roleplaying opportunities story-wise are fairly scarce. You do often get choices in quests but your dialogue is New-Vegas-style bland, and you rarely get to assert any kind of personality or opinion on things. There are a number of factions to join so you can define yourself via that, though it's not as in-depth as something like Daggerfall in that regard (you have no status with the law or reputation in each settlement or reputation within or between factions, for example).