Apologies if this is old news, we've been a bit occupied up here in Rochester.
Aside from the color and compatibility (understandable), I'm super happy to have a low-cost, clutch option, alternative-to-Shimano 8 speed group....
$88 gets you a shifter derailleur and cassette. Paired with the right crank and you're capable of everything but loaded touring and pedaling downhill.
Alex in Rochester, NY