Overall, I think it was a big improvement, but did not fix everything.
But I did do a nandroid restore after the SBF, so there may be some baggage in the restore.
I recommend giving it a try.
flyinion iI would use RSD Lite, as the whole point is to completely wipe/rewrite all the files/partitions that cannot be touched otherwise. The OTA updates from the link you provided are no different that flashing a ROM.