The infotainment works ok but it gets mad when you install any other app on it or login to Google Play.
Well if I had to change or upgrade infotainment in a Corolla, I would not again go for any nameless Chinese equipment, but get a branded one for instance Pioneer which is working very nice in a friend's Grande for about two and half years and the sound quality, UI build quality is excellent. Price range is about 45K of Pioneer infotainment unit and the catch is that you can hook audiophile sound system with it.
DSC_5710 by Masroor Gilani, on Flickr