We've been using the ZYX Universe with our preamps (MP-3 and MP-1) for the last two years. The cartridge has proven to be one of the best tracking cartridges we've heard- on the Triplanar I've yet to encounter an LP that will produce even the slightest strain- the image is as stable as tape (you will only know what I mean by this if you have heard a good analog tape system) never with even a hint of strain.
The MP-1 plays the cartridge easily, with the phono noise well below the noise of the best LP surfaces, the MP-3 definitely has a noticeable hiss, although it too is below the surface noise of the LP, but only by about 6 db. We rate that phono stage at 0.3mV and the ZYX is actually at 0.24mV, so that's not so bad.
In either case, the sound is very relaxed and detailed, but we find that the Triplanar is essential as the VTA adjustment yields big results.