I had two of them, PP replaced the first one after it went crazy, reading an average 420w for an hour after a first 1.5 hour out 330NP. Looked like when I stopped for a wheel change it would've needed recalibration or something.

Then the second one came, worked absolutely fine for a week, and then 2nd race day with it, again rainy. Now this time I never had to stop during the race, but I noticed as the race was going that it kept reading higher and higher... mid race steady 400, 2/3rd into the race 600, end of the race just spinning the legs at over 1000w.

Then after getting home and washing the bike, the power meter never came on again, even after waiting for it to dry.

So in the end I think they had a serious problem with waterproofing on the two units that got to me.

@GLTRV v > I would suggest you take some serious measures to waterproof that usb-c port of yours now that you lost the useless piece of rubber (mine was on the entire time).
@gplama > I suggest when you do end up testing and review it, that you test it in the rain for 2+ hours see how yours reacts.

PP told me they tested a few on their side and never had issues in the rain, on my side it's a 100% failure out of 2 units, so I asked for a refund and got myself a pair of Assiomas as I've wasted enough of my time with inaccurate data over the years on half of my bikes.

Hey, did you get an answer yet ?
On my end I had feedback saying calibration issues where only on bluetooth (and it was apparently fixed in a recent update)

But this weekend after a couple of weeks of training on mine with no issue, suddenly the power pre-calibration was showing 600w just cruising on the parking lot before warmup, I calibrated and the offset went from what was usually in the 200-400 bracket went to 5000... Still post calibration power numbers seemed okay until I punctured mid race. After stopping to swap wheels from then on I apparently did 400+ watts till the end of my race, even after I sat up after my last big pull for my team... (So my FTP apparently went from 330 to 400 according to a 20mins at 420, 1.5 hours into a very hard race  )

2nd chinese spider based power meter that turns out to be a random number generator. Waiting to hear back from pandapodium see if there's a solution.