Barely a thumbs up.

Final Fantasy II is in an unfortunate state currently. The Pixel Remaster does good work for FF I but is very lackluster for the rest of the titles, such as FF II here. Some quality of life features are good to see and the soundtrack is the best rendition yet by far, making it a valid version to play. The downsides however are the absolutely awful tiny and pixelated sprites for all characters and enemies - seriously, even the GameBoy Advance version has more detailed sprites. There is also a COMPLETE LACK of character portraits and the text is in a small, thin and ugly font size for ants that doesn't fill out the dialogue boxes whatsoever.
In the graphics department, it is a complete and utter case of "What were they thinking???" in almost every department.
The PSP and GBA post-game extra story is also missing. just why...?

Buyer's guide for Final Fantasy II (no perfect solution):
-NES Version: If you want to simply see how the original release looked. Grindy and crude.
-PSP Version: The best graphics, modernized (less grindy) gameplay and access to the extra post-game campaign. However, the soundtrack in this port is pretty weak.
-GBA Version: Same post-game content and gameplay as PSP but a slight downgrade in graphics - though still charming - and a much better soundtrack, if a bit chiptune-y.
-Pixel Remaster: Graphics are completely gutted but by far the strongest soundtrack rendition yet and there are some quality of life features such as map/mini-map, screen resolutions, etc.