I wore them and the Tudor "longs" for a decade-ish from 1990. I liked them. Always worn with clip on braces. They got a bit saggy and heavy when wet and being a cotton/nylon mix took ages to dry out - but because they kept you warm, it wasn't an issue for me personally.
Then I started wearing just the "plusses" (new modern ones - but just the same as the older ones x 2 pairs), with long socks, again from around 2010 until 2019. That would have been during Autumn, Winter and Spring, cycling daily and averaging at least 800 miles per month in all weathers. I just liked them. I did buy a pair of Goretex over trousers - but hated them and the clammy legs and noise and general feeling over dressed discomfort. And preferred to ride with wet, slightly saggy, slightly heavier Tudors. Which wasn't really noticeable until I got off the bike, to be honest. The essential (for me) clip on braces made a huge positive difference in comfort and fit. I would imagine they'd feel noticeably Nora Batty saggy when wet without?
I had size Small.
Always wore with a pair of padded short liners - the type which came with some German "Gonso" Palermo ¾ length summer "plusses"
Personally, never had any issue with the quality and no problems with sewing etc - that would have been around 19,000 miles for the latest ones.
What size are you? Happy to post you a used pair of my Small to try out for a month or so?