Not at all convenient, the sponge doesn't reach to clean and it splatters soap everywhere. I will go back to a sponge from a well-known company that, although a bit more expensive, cleans perfectly!

Easy to use, cleans very well, however the small brush that attaches underneath is difficult to remove

I bought it mainly for the sponge... Which ultimately doesn't do the job it's supposed to... I mean, cleaning the bottom of the bottles! Wrong purchase!!!