Hard to compare, Summertime Saga is one of the best ones around, on the same level as some other MVPs, like Aurelia and What A Legend.
This one aims for a more retro 2.5D (isometric) feel. It has some RPG elements too and there certainly are some similarities, but both hit differently.
I suggest you check the other two I mentioned, though. They're both on Twitch as well.