I had a CZ550 and sorta have a M70 (FN SPR action bedded in a wood stock).
The CZ was a good rifle, but heavy, and I felt the LOP was a hair too long for my liking. I also didn't like the trigger, even though it had the single set trigger. I ended up replacing it with a Timney.
My 550 was chambered in 6.5x55, and for some reason, CZ uses a 1:9 twist, too slow for heavier bullets. Nearly all modern 6.5/.260 rifles are 1:8, it seems.
I also prefer the 3-position safety of the M70.