Sega Dreamcast is considered to be the first console done right from Sega after they started with the Add-on stuff with SegaCD and 32x, and the big issues the Saturn has (although a pretty good console it was a nightmare in development compared to PS1).
When the DC appeared it was easier to develop, had good games and good support during its life time (there are developers that still make DC games today), and had pretty good graphic capabilities. The controller, although bulky it was comfortable and not too many buttons to scare people (first console my mom played after NES, LOL!).
However, Sega released the console too late, not early. Late because the previous consoles they made some uncertainty from many developers and they chose to wait for PS2, GC and Xbox than to support it. The technology was not the problem but the company's past what destroyed the potential of the Dreamcast
