I had the R800 for a number of years and didn't experience any significant clogging issues with it - nothing that wasn't resolved with a short cleaning cycle. It finally died after about 3 years use, and I recently replaced it with the R1800. The R1800 seems to have overcome the out-of-gamut issues the R800 had in reproducing dark greens / browns / yellows where it exhibited smearing and blocking, but I got over the worst of that in the R800 with a custom profile and adjustment curves, but without ever really fixing the problem. The R800 proved to be a difficult machine to profile; my results from it were acceptable but not as consistent as I'd have liked with either the canned or custom profiles. Although customers who bought A4 prints from it have been delighted - never received a single complaint, quite the contrary.
The R1800 has much better profiles out of the box (and they are real), and it seems to have overcome the R800 out-of-gamut blocking issue. Andrew Rodney produced an excellent custom profile for me (also real) and I get accurate monitor / print matching - far better than I did with the R800. The custom profile gave me a more neutral result and better skin tones, and improved B&W, though this printer will never produce first class B&W - it only has one black ink.
As for it being a toy, the R800 and R1800 will produce better glossy prints than the 2400 / 4800 upwards - I've held off buying a pro-level printer for over a year now because none of them I've seen produce acceptable (IMHO - waiting for the flames!) glossy prints. With a well-written profile, the R1800 will give you excellent prints. And of course they churn out the 4x6" / 5x7" snappy snaps just fine, which the 4800 won't do.
Alain Briot sells prints from the R800, and in my humble way, so do I. If B&W is more important to you, they're not as good as the K3 models, or indeed as good as certain of the HPs. The 8450 I tried produced better B&W but with a decidedly warm cast - with a custom profile this would do a better job of B&W than the baby Epsons. Sorry to say that the Canons I tried (up to the 19950) were not as good as either the Epson or HP. Very dark prints, really poor B&W.