I prefer Tutti Frutti over Razzy Fresh (I know other reviewers have said the opposite). Here's why:
-- Roomier (actually able to sit down!) and nicer, brighter decor
-- Friendlier staff
-- More than one cup size (even though they are all variations on large)
The frozen yogurt is good; I'd say it's basically the same product as Razzy Fresh. The selection of toppings is great (maybe a tad better than Razzy Fresh, but also pretty much the same). I have always received a friendly greeting from the staff when I come in. They have ample seating (a BIG plus for me over the cramped RF), including kid-sized tables and chairs, which we sat at with our 1.5-year-old. The decor is bright and cheery.
I'll be back.