So a few things to mention according to what I've played through(excluding details from updates and such), they are subject to change once bugs(if it applies) and the system are fleshed out a bit more. I'll try my best to stray away from mentioning anything related to bugs since this is just an alpha build:
-Combat: It felt a bit weird since the system is now automated, but makes sense since most of the time you spam attack(not defend at all) and run. Kinda sucks how he replaced the skills from having cooldown to mana, which took the strategizing element out, resulting in you spamming the same skill over again like other games. Nothing wrong with this new system and I know it's a hentai game, but something fresh like the old system was good. One women army pure play though is pretty much gutted, as restrains are inevitable penetration(depending on enemy), requiring constant saves to fight/complete a single quest. The crit is insane as I do so every 2-3 turns, I assume it ties in with the new combo system he introduced.
-Housing: Like mentioned before, it was simplified, which makes the customization of furniture parts in your house no more. I don't really like this since you can't customize your buff, but have to use specific sets of buffs according to room type.
-Graphics: It looks nice now that everything is in MV and sprites/h-scenes have been updated, but due to the overwhelming amount of stuff, the frame runs pretty slow(GTX 2070). I'm assuming it has to do with my pc running pretty fast and the graphics only renders correctly at 60fps, so installed 2 plugin to fix it.
-Quest: Like the old version, I really like how much emphasis is put on the quest, which makes them more worthwhile to do because they are your main gateway to progressing fast.
-Lorimon: Don't require to give birth to them for party, is an option you can choose once you've collected them.
-Equipment: There seems to be a attribute system and gear level for equipment, which is nice.