I think that, despite the fancy graphics and online capabilities of the current generation of consoles, my favorite console ever is still the trusty old Super Nintendo. The SNES had an absolutely amazing lineup of games that are still some of my favorites, and it featured graphics that were perfectly sufficient for 2D gaming. Which is why I have a soft spot for homemade portable SNES consoles.
This particular model accepts old SNES cartridges, making it kind of bulky. But it retains elements from the original SNES controller, which is a nice touch. Personally, I don't have many cartridges left from my SNES days, so I'd prefer a smaller model that stored the games on a hard drive, but I guess beggars can't be choosers.