I’ve been pretty much living in my ME Fitzroy I bought about a month ago. Was lookig for a synth jacket really, but the Fitzroy fitted better than anything else, and read after I decided, but before I ordered that the insulation had changed this year to Primaloft Gold. Wasn’t put off. Not got mine properly wet yet, (no ill effects from rain showers) do can’t comment personally.
If you search for reviews, you’ll find one with some very unreal world testing – scrunched in tub or water, completely soaked, wrung out, left for 10 mins – 90% lofted. They seemed pretty impressed.