The downside is not enough variety in overseas players. Nobody from India, Pakistan and Sri Lanka in the women's and few from Windies and South Africa. It's very Australia heavy.
The ownership situation concerns me most with certain county sides retaining majority or signifcant shares in the franchises and thus a big chunk of income while others get nothing. It will potentially spell and end of the county system as we knew it. With the "Hundred counties" dwarfing the others
both have far less teams and less opposition to change. you can’t franchise 18 counties, none of the members would ever vote for it and there’s just too many to run an IPL / BB type competition.
I tried to watch it a few times when it first started, but just couldn't get into it, so haven't paid it a bit of notice since.