Well, this may help you decide. I got this letter from ccslide (had an account there that I never used):
Dear CCSlide Client:
Recent developments require that CCSlide.com accelerate the phase out of all new transaction activities effective immediately. This means that you will not be able to execute any new transactions through CCSlide. However, you
will be able to fulfill pending transactions through Monday, November 20, 2000, at 5:00pm. CCSlide.com will meet all its payment obligations related to transactions completed prior to termination based on the Client agreement.
In order to support a quick and reliable transition to a new full service, online payment solution provider, CCSlide.com is pleased to provide you with direct access to Verza/Verotel. Verza is uniquely designed for online sale
of products (shipped merchandise) and Verotel is designed to support online sales of services and subscriptions. Verotel supports sale of all legal online services including adult services.
For quick sign up with Verza or Verotel please click on the link below:
http://www.ccslide.com
Sincerely,
CCSlide Customer Support
Now, I guess they still offer something, but I don't know if they were bought, or switched systems, or ??? I always liked instabill better, but maybe they will be offering more features now, or ??? (again).