It is only since about a year that I started actively investigating iems. The portability and the miniaturisation are such a joy and the constant improvement is breathtaking. In the course of last year I bought several in-ears from cheap (Joyroom 107) to relatively expensive (Nuforce Primo 8). While listening and letting it all sink in (early enthusiasm can prove to be a misjudgement due to new toy syndrome) I discovered that the sound signature that I liked the most is coming from Vsonic's GR07: balanced (no bloated bass), coherent (this is a problem I think with all the hybrids and balanced armature iems I heard up till now), no congestion with air around the instruments believably positioned in a soundstage...
As this benign 'illness' gets a hold of you, you're always on the look-out for a better iem. I have the impression after reading so much good stuff about the Mee Pinnacle that this earphone might be the step-up for me, taking into account the sound signature of GR07. Or do you think the improvements are marginal?
One cannot say enough how great this forum is. This is the 21st century at its best. Information flows freely all over the world and everybody's contributing to make (auditory) life better for each other.