Just bought one to replace my 50 1.8 as that was always a bit too long so fits the bill perfectly as weighs the same while being built better and while nice to have 1.8 I pretty much only shoot outside in daylight so not exactly needed! ALso a bit of a bargain at DigitalRev.
All those whining about the DSLR being too big and heavy to carry around need to try one of these lenses on something like an 1100D as it only weighs around 600 grams all in, is pretty small yet still gives very nice IQ along with DSLR functionality, viewfinder, performance (speed and battery life) etc, etc,.