P.S. My Recaro Japan mounting bracket left Tokyo this morning via UPS Air ... now, will the eBay Ergomed ES itself make it by Poczta Polska Surface from Gdansk?
I'm Polish, so I can comment on Poczta Polska

. If the items were shipped, you will get them. It may not be the fastest service, but they have never lost my mail before!
In regard to winter tires. I have previously used nokian hakkapeliitta 4s (studded) and blizzak WS70s for my winter dailys. It is kind of hard to compare noise, because they were all on different cars... but neither of those tires was particularly quiet from what I remember. I would definitely not keep winter tires on in warmer weather. The sidewalls/tread on the winter tires is really very soft, so I feel like they would get chewed up in warmer weather. Especially with any kind of "spirited" driving.
On the CX-3, I went with Falken Eurowinter HS449s. In my opinion, this has been a phenomenal tire. It is definitely not as good as the hakkas or even the WS70s in pure snow traction, but as an all around winter tire it has been great. Much better highway stability, especially at higher speeds (and we do a lot of highway commuting in snowy states). They are much quieter than the hakkas and WS70s and treadware after 3 winters has also been superior. I kind of see this tire as an "all season" winter tire, if that makes sense. It does a good job (but not excellent) at everything winter related.