Tresorit has been around a while, and was the nominated service to migrate to once Wuala shut down. I used SpiderOak for a while and though it started off with

Tresorit has been around a while, and was the nominated service to migrate to once Wuala shut down. I used SpiderOak for a while and though it started off with promise, it just isn't up to scratch compared to other services. Plus its mobile application is horrendous.