For now it is one of the best self-custody portfolios to start with LN.
It makes a lot of things easier and now more so with their "splicing".
What they charge for their splices for some may be a high commission. But you have to have a business model to go forward. Also you are saving a lot of things that not everyone is willing to do, such as creating channels, being aware of your balance, etcetera.
I just hope it improves your privacy. Although they say they are working on it. Hopefully those improvements will come soon.