Andy, my E-M1 MkI, 14-42 EZ pancake zoom, 40-150 plastic fantastic, spare battery, and clip on flash in its Thinktank Mirrorless Mover 10 bag (about 150x150x125) weighs 1227.7 grams (very accurate scales ... ). The E-M1 MkI body is relatively heavy for mFTs, around 550 grams.
IQ is much the same as the image you posted, maybe a bit sharper. Certainly not perceptibly worse.