The wallet for the smartphone was not bad, and the release of the version for desktop computers gave many advantages for trading from a desktop computer. But I would use it only for trading and never use private keys, as this is the best way to protect my funds.
Actually, we don't even know if their security will overwhelm us and give us something unique than with the mobile application If they can not surpass that then it is not worthy of having it, but we can not judge it just yet, but apart from that security.
I like the app, it connects the whole Binance ecosystem together. You can hold Binance and BE token here, you can play dapps or exchanged tokens on Biannce DEX. For me a cool one step solution.

Well, it will surely give us many options for trading, and hold token at the same time, I guess let's just wait for further announcements If this kind of wallet will have unique security and a convenient way to exchange your coins to the wallet and the trading platform.