I'd be inclined to say 'amazing' for the price. I understand the use case for rPi, beaglebone black, cubieboard, etc. when you need video and actually good GPIO(even more so if you need proper PWM, i2c/SPI, etc. BBblack, especially, has some pretty powerful specialty I/O options); but routers are so aggressively priced that they are often a pretty good deal for adding network capabilities to assorted projects on the fast and cheap.
I'm always up for other suggestions, of course; but I'm currently a big fan of the little 'travel/portable' routers that the RT5350 seems to have spawned a bunch of. Ethernet, USB, 802.11B/G/N, typically a serial port(I got lucky with the ones I purchased, the pads were even labelled and everything), and a few GPIOs, all for $15 or less. Kind of weak (usually 32MB RAM and ~400MHz MIPS core); but feel the price.