So so happy for Alex. I actually think it's a great move by Red Bull; putting him in the car for the rest of the season gives them a great opportunity to evaluate him instead of potentially taking a risk and signing him for a full season. It's a massive, massive opportunity for Alex as well; he doesn't have to challenge Max and nobody is expecting him to, he just has to perform better than Gasly did - so basically just needs to deliver solid points by finishing at least P6 ahead of slower midfield cars. I think he'll take his chance too; he's very strong mentally and has already shown that he's able to adapt quickly and seize the opportunity when it presents itself. Just a few months ago he had absolutely no chance of a career in F1, no sponsorship money to keep on driving in F2, had already signed to drive in Formula E, and there he is now, switching to a top F1 team mid-season as a rookie. I think he definitely knows what's at stake here and I might be in the minority here but I am sure he's strong enough - both mentally and as a driver - to make the best out of it.
Also it doesn't surprise me one bit that Red Bull are putting Albon in the car instead of Kvyat for the rest of the season. They already know all they need about Kvyat whereas Alex still is a bit of enigma and this is a perfect chance to compare all of their drivers in order to make an informed decision for 2020. If Albon performs better than Gasly did, he should get the seat next year. If he performs at the same level as Gasly did, Red Bull will know they have to look for another driver for next season. Gasly was miserably slow in a Red Bull, Kvyat wasn't convincingly beating Albon in a Toro Rosso despite having 4-5 years more experience in F1; it will be very interesting to see how they do against each other now.
Also two of my favourite drivers in one team, love it!