I love my etap bikes. One tandem, one road bike. BUT, my road bike etap derailleur has failed. The failure was intermittent; try to shift and it wouldn't move. Not the batteries and maybe the server/motor (not sure of the terminology here). I called my LBS and they didn't bat an eye. Their report? Tons of etap failures are coming into the shop. Their advice? Stick with Di2 for now. Great. Can I get my money back?
I wasn't aware people were having issues with eTap. It's not super common here, but I know one guy who has it, and he hasn't had any issues. If you had bought it from our bike shop and it stopped working WE would look into warranty from SRAM for you. Not sure what the deal is with your LBS that they wouldn't take the initiative and start that process for you. "Stick with Di2 for now" isn't an answer - UNLESS you didn't actually buy it from them. hehe.