Not too bad, I enjoyed playing. Feedback for you:
Need a way of disposing of equipment you no longer want/need. Once I filled everything up it was just grinding from there on, no improvements.
Also, if you buy everything and try to refresh, you spend the money but nothing happens. If the intent is to not let you buy more than three items (which is fine) then the refresh button should be disabled.
Hit a pretty broken combo: Healers Kit, Hollow Heart, Angel Tear, Heart Amulet. Max life near 700, healing over 200 after each battle.