Yes, you can have linux distro for VPS.
We can do any distro you want, the existing clients are all CentOS plus a few on ubuntu.
Yes, SSH access is allowed.
It works as any other dedicated server plans. If you can let me know in detail what your specific concerns are regarding this, I will be happy to explain it more.
If you plan to use CentOS, yes. For a different OS, please open a ticket to our support department so that we can assist you personally.
TotalVPS Starter is a non-cpanel unmanaged plan which the user will have to maintain and update. All other plans are cpanel based CentOS servers which are fully manged.
Let me know if you have further questions.