I absolutely loved it. I wanted to try each of the Dragon Quest series and started from the 1st (single-player), then 2nd (three dedicated characters), and 3rd (party-based with classes), and watched like the development of how they handled keys (single-usage & type, up to dedicated & multiple types), and inventory slots (to shift something you have to give it to someone else, or else everything below it to someone else and then back again), and so on. 4 was the culmination peak of it all before moving to a different console iirc in 5, with such an enormous storyline moving over several chapters each with entirely different characters, until they start merging later on. The auto-battle feature was truly horrific and you may want to read a guide or else you can get stuck in the final battle, like I am talking full-on idiocy i.e. casting insta-death spells at the final boss, entirely uselessly. For someone who likes grinding and story though - and why would you play an "older" JRPG like that if you do not!?:-P - it is a fantastic game. Poor graphics, especially by today's standards, but a fascinating into the past when it must have all been so "new". On the other hand, everything I am saying here is in regards to the NES game, so if you are playing a re-release somewhere, a lot of that could have been improved.
If not, other alternatives to get a feel for JRPGs without needing to grind as much are Chrono Trigger (very short game, heavy story, very easy progression that makes grinding entirely optional, one of if not THE best game of all time in fact! bad gfx but think of it as a "choice" as in comic book style and it makes it more bearable, plus it's even true b/c they were really bad even for its day), or Dragon Warrior/Quest 7. Another thought that does require a bit of grinding but is still old are the Lufia series.
