I have been serviced since 2012. I'm happy with everything! Specialists are working (especially Ruslan Gulakov). So, for example, after the last maintenance, the officials (currently carrying out the Porshe salon) released a "Check Engine" on 04.01.25, they diagnosed a problem with fuel pressure and counted 1 million tenge for removing and flushing the tank. Bastion found out that the officials forgot to screw the filler cap in place, which is why the exhaust manifold pressure error was shown (the cost of diagnostics is still 10,000 tenge). In addition, Bastion always has Mobil oil with Dexos additive, which GM recommends, unlike Motul oil, which is poured by the officials (which is most likely why the engines of the new Escalade are flying)