From a 500 Mbps line, it reached about 170 after going through one hallway of the house, I expected something better than this.

I got a pair and I am completely satisfied. Easy installation and very satisfactory speed.

Very good extender. The only issue I encountered was that when I initially extended the router network using the WPS button, I had connection problems. Eventually, I reset it and installed it through the TP-LINK Tether app, so network extensions were created at 2.4 and 5 with the _ext extension.
By selecting the network with the 5_ext extension, I have very fast internet and in areas that previously did not have access to the router due to wall interference

Unfortunately, it was purchased as an extra for a little coverage (without being necessary) and it turned out to be a bad purchase. It gets stuck and although it appears to be functioning normally, it has completely lost contact with the router and needs to be unplugged and plugged back in to synchronize, something that tired me out and I completely removed it. I don't know if I fell into the case, but the mesh wifi doesn't seem to work as I imagined.

After 4 different extenders from the same company - it is the only one that worked satisfactorily since its signal had to pass through two old and thick walls to reach our room. Very pleased with its performance

In general, extenders have problems, this specific one is exceptional, fast and without any issues, seamless operation on the first floor of a house with the router on the ground floor.

Very fast in installation, very easy in its settings, and very reliable. Everything is easily done with the mobile application and configuration is very easy. Very good signal and high speed. If combined with a Tplink Router, it can also function as a mesh (I bought a tplink router, I am so satisfied)