The DX engine makes amazing noises, but good luck designing patches for it. Also the keyfeel on this thing sucks. It has velocity sensitivity and aftertouch, but there's no weighting and it feels like you're bending plastic forks.
But again, Yamaha FM sounds are the sounds of the 80s, and if you need some sparkle or pluck, it's tough to beat a DX-7.
I bought this in 2018. Was introduced to the DX7 by music teacher in junior high and played the DX7IID in my high school music lab. The sounds were pretty cutting and unique back then and I remember being impressed by it. If you find the treasure trove of online patches (or better yet, can tweak your own), this board can look and sound quite current. Plus, it ruled the '80s.