I bought a WE1010, despite the 169EUR price it goes for here. The build quality seemed excellent to me. Case, handle, cable, UI all nice, etc. Performance was rather bad, though. In Dave's review he had a ~30C discrepancy between what he set the station to and the actual tip temperature. Mine was even larger, so large in fact that the range of the build in offset was not sufficient. Set at 300C I'd measure ~240C at the tip. Thermal capacity and heating response was similarly terrible. With the already low temperature wiping the tip 1-2x would drop it below the melting point and solidified, jagged solder starts tearing up the sponge. Plugged into a power meter it's obvious that the iron needs a second or two to even start heating back up and it takes quite a while to get back to normal.
I returned it for a refund. Considering you can get an integrated tip/heater/sensor type iron like the TS12/TS100 for <20EUR/<40EUR respectively, it seems ridiculous to charge 169EUR for this. Given that the performance of this is worse than the more modern designs, the only thing the Weller really has going for it is the brand name and the expectation of quality that goes along with it. But if I see Dave's review model being off by 30C, mine being off by 50-100C, I don't know what I'm paying all this money for. I clearly got a dud, but I think even if mine had worked as designed I still would've been unhappy with the heating stability, speed & recovery.
After recently having to endure three separate speaker repairs from a major German brand, I think I'll no longer give money to my fellow countrymen and go for Chinese products instead