Opinions on this instrumental Progressive House/Trance song?

the vocal doesn't sit well in the mix and I find the upper mid in it to be kinda piercing.... otherwise? very cool, does exactly what this type f house track is supposed to do

it needs the vocal, the vocal was covering some of the weaker sounds, pulling them in the background. Just try dipping the upper mids of the vocal gently. About 3dB centered at maybe 3k. Then goose the detail range to balance them. above sibilance, 12 to 14k, very steep shelving EQ or the 'air' region on the MAAG EQ If the vocal is compressed heavily you could also try some pre-comp EQ as well as post comp. HPF pre comp, do a mid dip pre comp then any boosts post comp. Its another way to handle things.

Also, the piano sound? You were going for that early house bad 80s/90s sampled piano or like the ensoniq perfectpiano thatw as not so perfect? its not quite there. For that weak emu piano in software try downloading plogue sforzando vst and then google search for emu emulator preset packs as soundfonts, you'll find that piano if you DL every emu preset on the web. I have it on a drive somewhere in SF2. For the ensoniq additive/wave-table type piano download SQ8L vst and build one from the piano oscillators... does a good impression of an ESQ1. Its not 'perfect piano' from the alter all digital synths, but its got that quintessential synthesized house piano thing going if you build a good patch.

spend some more time getting to know that jdxi you have. Its a limited synth but its 2 engines have a good sound in general and it can be made to do some cool stuff. You could probably use something better for bass. Even a little volca would do you.