It's OK. Actually it could be a nice soulslike but it is too short. You'll have max. upgraded flasks in under 6 hours and you saw almost the complete game in under 10 hours.
For every other genre that's fine... But soulslikes should at least have the 2-3x lengh.
Thymesia always feels like it COULD be great but it does not try to be great. Therefor it is only OK.