Initial thoughts (duolingo on Acer C720): a lot of the UI design is pretty unintuitive, and although I'm sure I'd get used to using it with a non touchscreen and a physical keyboard, it just feels suboptimal. Also a weird feeling having Android-like prompts on a 'regular' computer. No fullscreen, so I'm left with a small window on an already small (11") screen. Functionality-wise, does what it should, but I'd much much rather have an offline proper chrome app. Currently, it'd be my last choice behind my android phone, iphone, ipad, and laptops I have with me right now (I realise I'm unlikely target audience).