Currently I have all of my savings (apart from some savings in a LISA) in a Barclays current account which pays virtually 0% interest. Am I right in thinking that there is no disadvantages associated with moving 100% of it across to Marcus?

My pay will still be paid into my Barclays account each month which is more than enough to pay my rent and other normal monthly expenses. I could then transfer the excess to Marcus each month as well, only moving money out of Marcus and back to Barclays if I have a one off large purchase I need to make, as there seems to be no limit on the number of payments in/out that Marcus will allow each year. Does this all sound ok?