I live in the area so I drive through twice a day (plus all the trips through there in the course of business). It doesn't matter what day you head through its bad - weekend actually might be worse, because I think the lights are timed differently.
I think it will help alleviate the bottleneck from Callaghan to Ingram during rush hour and hopefully ease the drive from southbound Bandera in the mornings. I'm going to hate the day when it opens, because it will be mass confusion. It will probably take a few weeks to get it figured out. I can only imagine the anger Ancira had over the plans. They just built the new Bill Miller's BBQ there and the Luby's closed down (although I now see signs for Zorro's Buffet - coming soon, be interesting to see what that is). I think the Schlotzky's there won't last long (I never see much traffic through there). It will definitely be interesting to watch how it all shapes up.
Please forgive Josh and I for doing what agents do best...compare notes over our city. We all have our opinions. Of course, when we talk about congestion and traffic as a nightmare, it doesn't compare to what NYC or the East Coast in general is about, so don't let it scare you. San Antonio traffic is still preferable to Philadelphia or Los Angeles traffic, but in our city it is an issue we talk a lot about. The good news is that Texas is very fond of roadworks and there are constant improvements going on (as opposed to Philadelphia that never seems to do much in the way of new construction), so although there are inconveniences in different part of the city's road system, they are typically the result of trying to solve the problem.