I spent two miserable weeks debating between the epson 2200 and the canon i9900. After reading approx. 1 gazillion reviews (at least, it felt like 1 gazillion!) I opted for the Canon. After a while the reviews became a tad repetitive and the strengths and weaknesses of both printers is fairly well documented. FWIW, I didn't read anything about difficulties running an Epson with another printer but I wasn't looking for that information so it may be there and I just "ignored" it.
P.S. I finally decided on the Canon and so far (having done all of 5 prints on it) I love love love it. My decision was not entirely rational despite or maybe because of my massive research. In the end, the strengths and weaknesses were not directly comparable. Just had to go with what I anticipated I would appreciate more.
My point is, you can google up a blizzard of information on Google. If you have any specific questions, I might be able to help (even though I can't answer your first specific question

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