I'm also worried about the traffic signals on either side of the interchange, if the University Parkway DDI in Sarasota is anything to go by that creates a lot of congestion the DDI design can't fix.
I feel like the reason the Sarasota DDI doesn't function as well as intended is because there isn't any other way to get from one side of the Interstate to another. Which doesn't bode well for Sand Lake Rd either, since the nearest crossings on either side are a few miles away at Universal Blvd and Central Florida Pkwy.
It's unfortunate that a lot of traffic issues across Florida can be explained by the fact that there aren't a lot of streets that go through, but it's too late and/or costly to do anything about that.