I've had a few people ask me about these, so here's some subjective impressions and at least one graph.
Link to info: FaitalPRO 3FE22 3" Neodymium Professional Woofer 4 Ohm | 294-1100
Build: They are tiiiiny, but that tiny-ness is somewhat nullified by the large mounting "ears". Standard sized grills will not fit over them. The point where the terminals are mounted to the basket is a little weak. I nearly broke one off just slipping a spade terminal on it. Soldering pigtails on the connections is recommended. Everything else looks great, although it's not a beautiful driver by any means. I have to admit when I received them and opened the package, my initial impression was "Oh God, this looks like the speaker from a 1994 Sanyo TV".
Install: They are currently set up crossed at 300hz 24dB/oct L-R and playing all the way up. They are mounted in pillar/dash pods (ignore the Vifa tweeter, it isn't connected to anything). The dash is still under construction so pardon the mess. On the bottom they are crossed to a pair of PRV 10W600 midbass drivers running IB in the kicks. The subs are usually turned off for critical listening.
Subjective: They are extremely sensitive. I had to cut the gain down on my amp to 0 and still had to bring the level down a bit with my DSP. I guess this means they are correctly labeled as "pa drivers". They can get extremely loud, and I haven't tested them to their limits yet. They sound fantastic! I listed to some tracks from Fiona Apple's "Tidal" and thought: "man, Fiona must have been really hungry during this recording, her mouth is full of saliva". Anyone familiar with this album can attest to the smackiness of her vocals on several tracks, and the Faitals reproduce this perfectly. Another memorable moment was listening to Ray Charles "Live in Concert (2011 release)". Many systems will make you back down on the volume knob a few clicks once Ray starts into his vocals because they are so dynamic. The Faitals laugh at it, and it's scary how the reproduce the dynamics so faithfully. This trend continued, as many live albums really feel powerful and real. In the past I've never really enjoyed many live albums in my car because they feel distant or unbalanced. That has changed. Even with no tweeters connected, the treble lacks nothing. During listening I did fiddle with my 1/2 DIN EQ a bit at 2khz+ because they are naturally bright, but this could be attributed to my install. Note that the measurement below includes no EQ.
Objective: I don't have a lot of measurements yet, but here's a shot of the FR in my car installed as seen above. This represents just the single driver, I will try to take measurements of the drivers side soon. I took 7 spacial sweeps, with 4 on axis (or close to it), two with the mic facing forward, and one facing at the drivers window. The speaker is not crossed over and has no EQ applied. Note that there is no smoothing in this graph, and no smoothing to the sweeps used to create the average.