I saw him speak in May and he was very engaging, very solidly left (for U.S. values of left). We had a blizzard (yes, in May, in Texas. This is Amarillo) but he had over 350 people in a solidly red district. He stayed to talk and take selfies with anyone who wanted to speak to him and there was a long line.
He came back for the 4th of July and our Indivisible group and the local Dems club went out with him.
He's coming back in August for a Town Hall (Neither Cruz nor Cornyn have agreed to have ANY town halls during their terms).