I think they're good, but there are some downsides. Sometimes traffic can really slow down because they're _too_ big.

Another issue is, all their IPs are well known. When browsing while connected to them, you can run into a lot of issues: captchas, blocked sites, etc.

The other day I was accidentally connected and made a purchase. What a giant headache. My purchase was flagged and blocked and it took a lot of my time to call the company and get it cleared up.