We have the GlowStep Revolution on our Minnie Winnie 2101DS and I have to agree that this is the best modification that I have done. The stability is excellent. With the RV fully loaded for a camping trip like we are currently on, the landing gear is at the top position (least telescoped). My old steps were bolted on. The only problem mounting the GSR was the trailer mounting bracket which was welded on interfered with the two pivot bolts that stick out of the GSR frame sides. This is not to hard to fix. Remove the two pivot bolts, bolt the frame in place, drill two 3/8" holes through the trailer step mounting bracket using the holes in the GSR frame as a guide and re-install the pivot bolts. Not all trailers need this modification, just depends on the mounting bracket.
So far on our current camping we have traveled over 1000 miles and 3 camp grounds and I can't find any drawback and some very good advantages.