To me, the most important thing about tyres is their wet grip - if they're acceptable in the wet, they'll be fine in the dry.
What's acceptable to one person may be different to another, however.
I'd suggest giving the brake a heavy prod and see if you can get the ABS to kick in when on a quiet bit of saturated road and see how they do.
If they're OK, try a 'brisk' takeoff in similar conditions - this is usually where I find the grip limitations (on rear drive cars, anyway).
Even "made in Russia" tyres thesedays are pretty good in the dry, but can be a bit dire when a drop of rain is involved.