They’re everywhere on Instagram and I’m tempted by the look of them but my initial browsing shows a wide range of prices so I’d like to know if you own/or owned one!
Do you have any negatives? Are they comfortable to lie in? Do they retain heat well?
I see a lot of people put them up against walls with the taps in the walls (and the shower head attachment hanging in between the bath and wall) but I wonder whether it’ll be a massive dust trap! 
Any advice would be much appreciated thank you!