Sprouting with sprout bags?

Hi everyone,

I'm thinking about buying some sprout bags and would love to hear about your experiences with them.
Do you find them easy to use? Does it yield a big amount of sprouts? Do you use it mainly for grains and legumes, or also for more tender sprouts like alfalfa? How do they compare to a tray sprouter?

I have a tray sprouter, which I find easy to use, but am also considering buying sprout bags. Maybe you can recommend other methods as well (I don't want to go into the mason jar thing btw), what about the Easy Sprout?

Thanks for your help!