Safety of BTC wallet is the most important 
Especially online BTC wallets - as we all know. And also well developed hardware wallet safety and fast transaction times 
Exactly! Safety first. Maybe one of the problem is that, the payment is quiet late but that's normal Especially online BTC wallets - as we all know. And also well developed hardware wallet safety and fast transaction times But i trust it, so no reason to have a problem in bitcoin. there is a lot of problem to be complained about how bitcoin have a disadvantages ,
like when you are send money to a wrong address you can cancel it ,
also the offline store seems not ready yet accept bitcoin and many more.