Have you noticed any (significant) difference between the two in terms of staying clean? Does the CEFIONTECT eliminate or reduce the need for frequent, quick brush cleaning? Since you have one of each, you are an ideal test. I have 2 Toto Drake models without CEFIONTECT and need to replace another toilet. I'm trying to find out if the CEFIONTECT really makes a difference.
I know I am late in replying to this but I just wanted to give my perspective on Toto's CEFIONTECT. First of all this site was very instrumental in me choosing the Toto Drake CEFIONTECT back in June 2008. I would like to thank all the contributors.
Now back to the CEFIONTECT. Does it eliminate cleaning? Absolutely not. Does it reduce? Well, yes compared to the 40 year old toilet it replaced. However, I am somewhat disappointed in CEFIONTECT in regards to my expectations. The marketing of CEFIONTECT, to me, implied that the toilet would be self cleaning. I had visions of it being like very slick ice and any dirt that dared to stick around would slip away down the drain once the toilet was flushed. Well, it is not quite that effective. Oh well, so a little dirt stick around after the flush, so surely a quick flick of the brush and it's gone. Again, not quite, sometimes it will take a bit of elbow grease, especially under the rim. I can't compare it to the none CEFIONTECT model but do not expect the CEFIONTECT to be the magic pill of toilet cleaning
Overall, I have enjoyed this toilet. I have had to plunge a few times but I have much more confidence in it than other 1.6 toilets I have used.