Well, I've had an inkrepublic CIS on my epson printer for over 2 years with no mess. I've already saved over $5000 in ink costs over epson ink cartridges. You can google online and find more reference about 1800 cis
here are several good reviews with very detail info
http://www.inkrepublic.com/members/Merr ... review.asp
http://www.inkrepublic.com/members/Bele ... review.asp
http://www.inkrepublic.com/members/Paul ... review.asp
http://www.inkrepublic.com/members/ozpr ... review.asp
http://www.inkrepublic.com/members/Soren/review.asp
good luck!