I really like Sweet Republic. Some observations follow that might help your first experience here be a good one.
Yes, Sweet Republic has received all sorts of national and local recognition. One of the best ice cream shops around. Don't, however, let your expectations be warped unreasonably. It's a fun little shop that serves unique hand crafted ice cream. Nothing more. Go with that expectation and you'll love Sweet Republic.
Some flavors are truly unique. Take a taste or two before you commit to a flavor. As much as I love Sweet Republic, I've encountered some flavors that were not at all what I expected. I suspect it's the natural ingredients...
Flavors offered do change. Just be patient. Your favorites will come back around with the seasons, the day of the week or at the whim of the proprietor (who might be in the house). There are a few staples, however, you can rely on being available.
Consider spending a little extra and opt for a sundae. These concoctions really differentiate Sweet Republic. Warning. They're addictive.
No way around it. Sweet Republic is a bit expensive. You're paying for quality ingredients and unique flavors. Not a bad tradeoff.