Yep...works just fine for me.
No problems here and - most importantly - a noticeable performance increase, both with SP2 and with PR 4.1.0.
On the PassMark 7.0 system benchmark I noticed a performance increase of around 2.5 to 3% from SP2.
My system ranks 2-nd when highly overclocked to 4.2 GHz and tuned for performance, ranks 7-th with medium overclocking to 4.0 GHz with limited performance tuning (both with SP1) and ranks 12-th with slight overclocking to 3.6 GHz with SP2 and no optimizations, ready for editing with all utilities loaded and nothing turned off.
|Rank||PassMark 7.0 System Score||CPU Clock Speed MHz||SP ?|
|12||4014,x (Does not yet show and I did not save the results)||3612||SP2|
As you can see, the difference between SP1 and SP2 is telling. Less overclocking and still around the same score. On my notebook I experienced similar results. With SP1 the PassMark score was 790 and with SP2 the result was 830, a difference of 5%.
Loading projects with PR seems to have speeded up as well. I have no benchmark results, but loading a HDV project with 1:35 hours of source material, a 30 minute timeline and 17 AE comps, 100+ clips and miscellaneous pictures and sound files loads within 4 seconds.
All in all, both worth to install.