This place isn't horrible. I love the idea of it all. It just wasn't up to snuff. For a place with "wich" in it's name, I would think the sandwiches would be bomb. Instead, they were mediocre. I had the chicken pesto panini. It definitely lacked flavor and the bread wasn't as crispy as I had hoped a panini would be.
Not bad, just wouldn't come back again.
TIP: If you're looking for a good sandwich and you're in the MGM anyway, make your way down the walkway to Tower 2. Go to the Delights cafe and order their Bourbon or Market. You won't regret it.