I have the Senn, the Q7 and also Q8 side by side. The 935 is crisper and hotter and needs virtually no e.q.
The Samsons sound fine, but in my opinion not nearly as fine as the 935, which is my main mic.
I also have Blue Encore 300, AKG C520, EV-ND96 and probably a dozen more. They all have their strong points and it's a matter of which fits your voice best.
My E935 is holding up well, but it is possible that they can break down over the years.
There was a huge sale on them in the past year and I wish I'd bought another one for backup, just in case.