I bought a chainless BEIXO Electra foldable bike back in 2014 and I am still using it. I had zero problems with the transmission and yes, you avoid the risk of staining yourself or others with the chain grease. The only issue is that weighting 22kgs it is a bit difficult to carry around when folded, but it fit perfectly in a small car trunk or, as in my case, in a small camping car.