The Definitive Edition of DQ11 sits in a bit of a strange place. It was originally made for Switch exclusively, and the added content is comparable to something like Persona 4 Golden in terms of what it adds. Eventually it was brought over to other platforms and I'm glad I gave it a try despite already finishing the original release. Visuals did take a hit, but the art style is still very strong so it isn't as easy to notice imo without direct comparisons.
That said, all the quality of life and the extra character stories make the entire package feel much more put together. Crafting now allows you to buy missing items that are in shops directly from the crafting menu, so you don't have to scour the world to find the thing you're missing, and outfit hunting is a lot more fun since you can select outfits for characters to wear without it being dependent on gear, for a few examples.
I found myself getting so hooked on this version of the game, going for platinum was so satisfying and fun. It has a solid story, and the gameplay is a great introduction to JRPG's, although I think the pace is a little slow for the first two acts. Act 3, the post-game, is where the gameplay really shines and hits its peak. I wish it hit that peak a little earlier, but I spent so much time in Act 3 getting everything that it had plenty of time to stay shining.