I think they're all much of a muchness tbh. What sold it for me, coming from an older Cardo spirit system was how good and clear (and loud!) the audio was on the U-Comm unit, the fact that compared with others, it was nice and slim, having a separate battery pack, and the fact that you could buy a much larger capacity battery which takes literally seconds to swap over. That and it was waterproof. Sena stuff is overpriced I think. I was lucky and got a good deal on an SRL MESH system for my Shoei lid, but the UCOMM was still cheaper at full RRP than the discounted Sena system, dead easy to fit onto most lids and easier in practice to use as the buttons are more useable even with gloved hands. They've put more thought into the design. It does rely on having a slot at the back of the helmet between the liner and outer shell fort he battery, but the standard battery is slender enough to slot inside the space on most lids. I use my UCOMM on a Shark full face lid and it's spot on with that one. The only thing to check is that the speakers will fit in the cut outs on your lid.