Comodo pro has some other feature such has Trustconnect (you can get this for free as well), (CB will be included) Online Backup 10GB (the free version gives 1/2GB) if I am not wrong, Comodo Dragon will be included and you get so called technical support. BUT it's the same CIS that we all know of.
the big plus is TrusteConnect and maybe the support.
Regards,
Valentin N