My 2020 attended the Stanford camp this week (traveling home as I type) and really enjoyed the experience. It was nice to have his dad at a nearby hotel as he ended up going over to his hotel one evening to shower and have a nice steak dinner. 
Son did well overall--got his best 60 time of 7.0, which for a guy his size (6'4 190lbs) I think is pretty good. He also did well during drills at practices and BP. Although didn't get too many at bats during games (7 total in 3 games), he struck out only once and got a double to tie the game (off a guy throwing 90+) and a triple. In fact, when he hit the double, a pro scout was apparently filming because he was scouting the pitcher and he somehow tracked my husband down to give him the video he took of son's hit (the scout's was a much better angle and no fence in the way since he was in the dugout).
But, the best part is that this morning, before his last game at the camp, he got a text from a HC he's been emailing with saying he's been watching him at camp, likes what he sees and thinks he would be a good fit for his program. Coach asked son when a good time would be to talk and son said he would get back to him. Since his flight did not leave until later this evening, I suggested to son he should offer some time to talk today, but son said, "I am sure tomorrow will be fine." I admire his confidence and self-restraint (if it were me, I would have wanted to talk today while things were hot!), but I am sure he was also physically and mentally drained and just wanted some down time before traveling home.
Crossing fingers that the call with the coach goes well and that this is the beginning of more opportunities to come. I've spent some time today searching past posts on the board to educate myself on what next steps may be and how he should respond, etc. I've read that some kids don't hear back from coaches until a week or more after a showcase, so there may be more interest/conversations in the coming days/weeks. Plus, he has a few more showcase events still to come this summer.
This will be his first phone call with a college coach, so if any of you have any thoughts on questions he should ask or things he should say at this stage of the process, I'd love to hear them!