We tried to use a 150 kW Ivy charger with our CCS adapter at an ONroute stop during our recent trip to Tremblant. I couldn't figure out how to get their app to start the charger, so I scanned the QR, logged in with my account, manually entered the credit card details, and the charger enabled. We watched it negotiate for a minute or so, then gave up watching and did our quick rest stop while trusting the equipment to take care of itself in the meantime. When we got back out, both car and charger reported that negotiation had failed. A Polestar 2 that was pulling up to the charger beside us when we went in was already gone, so I assume that they couldn't get theirs work either. We just stuck to the Superchargers after that...