Length [very good]: I'm 30 hours in and only 16% done with it. There's tons of sidequests, puzzles, monster hunting, treasure hunting, achievements, crafting and other challenge modes you can take on so there is a ton of more time to put into the game. I forgot to add they've got an expansion and full-on sequel in the works.
Soundtrack [bad]: My only negative is that the music can be a little grating because certain notes are too high or off key. I don't hate it by any means but I can see it being really annoying to people who are sound sensitive. (You can turn off the music at least)
Characters [good]: You get to pick from 8 classes, multiple of the same class can be chosen, and each one has a unique purpose as well as being able to upgrade to a more advanced form. There's custom stat placement, skill trees and of course equipment to choose from.
Story [good]: I can't give a real score for this yet since I'm not too far in, but it's keeping me interested to find out more so that's a plus. As a side note- Depending on your party choices, the results of events in the story change.
Combat [good]: It's exactly like any other turn-based JRPG of old except for the macro option which makes killing trash while traveling somewhere go much faster.
Difficulty [good]: It's entirely up to you how hard or easy you want the game to be and you can change the difficulty at any time from the in-game options.
Graphics [average]: It is what it is, RPG Maker for one thing, but the content and execution is what makes RPGs so charming and the fact this game is trying to be a homage to old school games makes it justifiable.
TL;DR: The game has a lot of features older games it pays homage to didn't have, it's very customizable for beginners or experts and if you like JRPGs and have needed a fix here on Steam, this game fits the bill perfectly. (If it's on sale there's no reason not to get this, if it's not $10 is still a steal)