Lots of intermittent snow fields, some as low as 10,000 feet, but none of them required traction devices (we just had trekking poles). The sketchiest part for us was the snow traverse above Royce Lake 11725 to Royce Pass, which people with more experience than us might not even notice as a problem.
Mosquitoes ranged from 1 to 4 depending on breeze, direct sun, proximity to water, and elevation. The French Lakes and Royce Lakes were no more than a 1, Pine Lakes, Honeymoon Lake, and Granite Park more typically 3. I'd say the one place I was surprised was the treeless (but quite tarn-ful) plateau northwest of 'L' lake where we wore head nets and resisted the urge to run.
Stream crossings on trail up to Pine Creek Pass were easy. Stream crossings on the Italy Pass Trail were more problematic, but again probably not difficult for people with stream crossing experience.
I have a full trip report in three entries on my blog:
https://jimmyjamhikingclub.wordpress.co ... ench-lake/
https://jimmyjamhikingclub.wordpress.co ... yce-lakes/
https://jimmyjamhikingclub.wordpress.co ... y-at-best/
And here's my favorite photo from the trip:
