Which one? Because the 44-2, 44M, and 44M-4 are not identical lenses. Same optical scheme but not exactly the same diagram. It was improved through the eras up to the 44M-7. Also, it was produced in different factories (i.e. Valdai vs KMZ vs Lomo), so it's not only down to good sample vs bad sample.
M-4 is the one with best results, but I have seen M-7 which was a disaster and regular 44-2 which was excellent (although early silver one with m39 thread). As for manufacturers, there was also 'Belomo', Belorussian factory. Its product is disastrous.
I'm more surprised by russian lenses lately, after being almost a decade on Canon and Nikon glass. Almost all seem to have been designed for beautiful image rendering: 37/2.8 Mir-1, 58 helios, 50/2 Jupiter-8, 85/2 jupiter, 85/1.5 Helios, 135/2.8 Tair-11, etc.
I have Mir-1V (37/2.8), it's the only widely available Soviet wide angle lens for M42 thread. Everything beyond f/5.6 is adequate, but I really like how it softens the image at f/2.8. Never had others listed by you, cause even in FSU country they are quite expensive. I'd like to point out at Industar 50-2 (50 mm f/3.5), it's a diminutive, a tad whimsical piece, but it's super sharp and contrasty. No wonder, since "Industars" are Tessar clones (Industar means Industtry+Tessar), I extensively used it on 4/3 cameras as portrait lens and still use on APS-C. There's another Industar, "61". It's for rangefinders, with 2.8 aperture. Wonderful lens!
Russians could also produce good cameras when they wanted, take a look at the Kiev-15 SLR, Kiev rangefinders, or the Leningrad rangefinder.
I used to own Kiev-10. It's a non-TTL version of Kiev-15. It is heavy, clunky machine, but it was always highly regarded here, much higher than Zenits. While Z was considered amateur, K was a 'pro', due to more reliability, bayonet mount, automatic (Aperture priority) mode and wide selection of speeds (11+B on Kiev vs 5+B on Zenit). Unfortunately it had a weird metal shutter which was its greatest weakness.
P.S. Check out "Start" camera too, it's a real marvel back from the fifties. Unfortunately also unreliable.