I've been using these reeds for more than 10 years for jazz, balkan traditional, classic and free style.
They are pretty good but not excellent. What bothers me is that only one out of three reeds are well balanced. Most of these need some treatment before getting "there". There are online guides for reed treatment and adjustment, I strongly advice you check them.
Every time I get one of these packs of ten, I open all of them and try to play them for about ten minutes to half an hour. Two to five reeds are easy and smooth, the rest are usually hard and stiffer than a 2.5 should be. Sometimes the other way around.
Check some of the more expensive reeds, Vandoren V12 is my choice. Definitely experiment with other kinds of reeds according to the style you perform.
But yeah, these are OK reeds. Still using them.
The price is good too.
Pretty good reeds, good price, not all of them are 10/10, it's like scratching lottery tickets, most need adjustment but they all get the job done