I have an ultrasonic cleaner that I got early in my
vaping career but personally I found it didn't do any better than an alcohol soak/flush and it annoyed my dogs so I don't use it anymore. The recommended cleaning method is to boil for 10 minutes, flush with warm/hot water, and boil again.
All in all, the AVA is different from any other atomizer. Because of this it has some strengths that will be hard to match with a more conventional design. It's not a magical panacea and you may find you prefer something different. There's a lot of promise to the design and I think it'll stick around. Is it worth the price? So far I believe so. If it lasts six months or more it's a no-brainer and that sounds like a realistic outcome.