For now I only was using multibit since 2013 and i had very little issues with it. It is fast and secured. With his wallet you can store your btc on desktop computer
Br
Yeah, but the original poster asked about which
online wallet to use! MultiBit is better, in my opinion as well, but if you're looking for an online wallet, i.e. a web-based-wallet, you have to choose something else! Please read the questions!