You would expect to sync instantly like Myetherwallet, not sit and wait there 5 minutes. It's just a horrible experience for me.
The browser extension is nothing better, I had a hard time figuring out how to use it.
My experience with it was awful.
mhhh can not say ive got bad experience till now, sync is fast and software (desktop) works how it should be.
the only thing is at the moment, they need till now more than 11 days to claim bch in the wallet and no end in sight. just waiting to get my btc splitted and there are just meager or no news on supportchannel. (https://www.reddit.com/r/jaxx/) also lot of people are waiting.