Yes the feeding is improved, infact flawless.
Top rail is nice and low, make sure to degrease and locktite it secure after you settle on the side of the charging handle.
Rail is made 1mm wider than standard 1913 rail, may fit tight on certain optics.
Side charging handle works well, but sits very close to top rail, make sure you test clearance with optic mounts or you will curse.
Mag well is still tight, back ridge needs fine sanding to feed Pmags.
Pmags are not the best choice as there are no over insertion stop. Make sure you insert and pull on an open bolt.
Recommend STANAG mags, they are alot smoother in and out. Drops free after lotsa insertions.
Rear cheek top cover fits a bit loose, DIY by adding material to fit tight if needed.
Ambi mag release, FINALLY,