I was "friends" with some jews in school. Some were totally fine, others more annoying. However, in high school playing poker became a fad and the only kids we ever caught cheating were these two jews who were working together to rig the deck. Also I had a buddy on the high school soccer team who I thought was my friernd, loaned him 200 bucks and he never payed me back ever, despite being from a rich family and saying he couldnt.

So personal experiences have been net negative, with them living up to stereotypes