I’ve seen that the trash tidy has shot up in price or now currently unavailable.
If by removing the full bag it meant the next was pulled up and secured then yes I’d probably go for it. Is that how those nappy bins work?
The trash tidy has the potential of being a right dog’s breakfast if the bin bag above it leaks, the waiting bags will also get bin juice on it.
Also sometimes removing a heavy bin bag is a two-hand job so you may not be able to catch the incoming liner, or you have to reach into the bin.
Or just into your under the sink cupboard. The trash tidy just reduces the flapping of bin bags. That sound will be in danger of extinction ?