I purchased the unpainted rubber mulch, because it was significantly less expensive than the painted. I got it to put in my kids' play area. It has worked out great! I had read reviews saying the unpainted mulch could cause stains on kids clothes, but I haven't noticed that issue.
The company seems good, I didn't have any problems receiving the mulch. The delivery was by a big freight truck, so they called to schedule to drop it off. It took an extra week because they only come down to my area once a week and I wasn't available the day for the original week. But still they were incredibly polite about it in making sure that it was alright if it took that extra week.
It seems like good quality rubber mulch, it's held up to the Arizona heat as well as the recent monsoon.