I have the the stamina training unit and found it great help and enjoyable https://www.lovehoney.co.uk/product.cfm?p=13190
It’s a bit noisy, sucky sound, while using it, but it doesn’t bother me.
Cleaning for me is easy enough, open it up, pull it apart, flush with hot water and let dry.
The rejuvenating powder makes it feels amazing again once dry, however it’s apparently just corn starch so can be replaced cheaply.