I dont know how you feel but I think Alien Visitor need a change, - atleast from variety of Items and difficulty
The maps arent hard, the enemies are respawning so slow or less in the time that you can barely get 4 S rankings and the reward is already just "meh" for the time you need to get some. The weapons they drop arent good for LvL200+ content and the ring is also just there to have another piece which cant have potential, upgrades or scrolls.
It just doesnt feel rewarding and sometimes when you end up your 5th run with 4 belts in your inventory with the greed pendant and not having the RARE visitor once... except you fought him but he gave you a belt instead of something else
Note: I know you can easy use other sets instead of AV but its kinda hard to get good stuff on Reboot and really want something else which is not Von Leon at 215+