Gave it a serious try for a solid week, I cannot get pass the forced vertical tab design. Everything else was great and it would have become my main browser otherwise.
The sad thing is even if they added the option for horizontal tabs in the future I would not come back because of the inflexible forcefulness of the vertical design even after ton's of requests from the community for a horizontal option makes me feel like the dev's have a "my way or the highway" attitude that would bite me again in the future.