Just recently purchased these and there's been some changes for the 2019 G specs. Firstly the lever blade is now black. Pads are still bad and seem to glaze up real easy so as suggested I've swapped for some shimano pads. The bleed port on the calliper is now just a small t15 cap like sram and not like the shimano 7mm bleed screw anymore. Tekro bleed fittings are needed as before and I found that the jagwire kits you can thread the fitting onto a shimano bleed cup  (WINNER!) and bleed the same as shimano. 

Overall Im very impressed and its nice to be trying something different from the big S's