I like this marker, I have it with an electric trigger and left feed and it's pretty decent. The feedneck get pretty annoying and new parts are extremely hard to find. If you lose a detent be prepared to make one like I had to with some autococker hose and a knife. I looks very nice, 9.0 outta 10 on the Shiny Scale.
I would only really recommend this marker to someone who has experience with stacked tube blow backs because this marker is pretty fragile