The only reason I've considered a Sena of any model, is the battery life.
I tried a cheap Chinese knockoff, branded Yideng. It worked...OK, but
1) battery life was a joke. MAYBE 4 hours...then you have to charge it for 2-4 hours.
2) related to #1, could not be charged while in use.
3) did not communicate with a friend's Sena 20S, even though it was supposed to.
That said, the Chinesium substitute was, at $50, much more financially palatable than the Real Deal.
So if I want a headset that will actually let me listen to music on road trips, I need a Sena or similar. But I'm having a hard time convincing myself that it's worth over $200 to be able to listen to music in my helmet.
I have considered the older, less-capable Sena models. They're supposed to have the same, reasonable battery life (8+ hours) as newer ones. But Sena seem never to drop prices on the older models, which pushes me back toward "nah, I can do without."