New deal giving the longest fee free balance transfer within the market - 0% for 28% months and no balance transfer fee. I will be making use of this and shifting a credit card balance.
Previous best deal was Halifax 0% for up to 26 months with no fee. Sainsbury's deal is better in my opinion, not only because of the additional 2 months difference but is not up to e.g. if they accept you they will give you the full 0% for 28 months.