The incentive to use the Leofinance UI is because the author posts are paid out at 100% instead of 95% (the author portion that is).
Many front ends that have their own token are moving to that model.
So there is another reason to use it.
Posted Using LeoFinance Beta
That is cool. It could be a pain to have to jump back and forth between many different front ends though. I really hope that doesn't become the norm. It isn't so bad for people who only blog about one thing, but for those who blog about various subjects it could be a deal breaker.