Comment by jburwell

I have used them in the past with no issues for personal sites. What are your concerns? In many aspects, a cert either "works" or it doesn't (in most cases, a SSL trusts the cert without warning). Generate a private and CSR that meet your security requirements (e.g. key length, cipher set, etc), submit it to StartSSL, and verify the resulting cert. If it meets your specs and is trusted by the SSL engines you use then you are good. If not, you will need to find another CA.