This telecaster is my second after the purchase of the Te-52, so I can already draw certain conclusions.
1. My particular copy of the Te-90 is made worse. I am a little surprised, because it seemed to me that the Deluxe series offers, on the contrary, higher quality. The neck was dry, smeared it with lemon oil, it became much better. The frets stick out slightly. In general, the sensations from the Te-52 surface are much more pleasant.
On top of that, after a few weeks the neck pickup has lost contact and will have to be repaired or taken to a specialist. (update: Thomann sent me another one)
2. But the weight of the Te-90 is much less and it's nice. Mine weighs about 3.5 kg, and the Te-52 weighs about 4+ kg. Yes, we usually play sitting and everyone is young and strong, but in general, this weight is much more familiar.
Also, the neck of the Te-90 is thinner, which is still more convenient for me. The cutout on the back side is also a very convenient detail.
3. The pickups are excellent overall, but they are weaker than the Te-52 singles (yes!), Perhaps because on the filtertrons is Alnico-II, and on the Te-52's singles is Alnico-V. However, these are still humbuckers and on distortion/fuzz sound the difference is obvious.
The appearance is beautiful. Orange blast is exactly the same as in the photos and videos. Beautiful, aesthetic. Despite all the disadvantages, this guitar is still a great thing for the money and will give odds to the same Squires.
Update: I've been playing it for several months now. Still, the convenience of the neck, sound, resonance, weight played a role and I play this guitar much more often than the TE-52. Something like this.