The Top is by all means is a good, or even great IEM. Definitely fun, but comparatively to the MEST MK2, it doesn't wow you as much as the MEST. Obviously a big price difference between the two as well, even for a used MEST. The mest has a special kind of sound because of the crazy soundstage and imaging you get. I bought the Top, and if I had known how it sounded beforehand, I would have saved up for the MEST instead, as my clear and more balanced set.
I was also interested in the Shozy Magma after rinderkappajoe mentioned it, but having little to go by other than his recommendation, I opted for the "safer" pick, which turned out to maybe be the less ideal option.