My experience with spideroak has overall been very poor as I discussed in a previous thread on HN [1]. I have since moved away from spideroak and am using duplicati [2]. Honestly, things have been much better since then. I have not had any issues, and whats more, duplicati is free and open source.

[1] https://news.ycombinator.com/item?id=13306745 [2] https://www.duplicati.com/