The British way of pointing these things out is something along the lines of "Oh this is great, have you considered X?" Translated to English as you or I would understand it, it's more akin to "meh, it kinda sucks, X is better".

Or something like that anyway; I never really figured out this whole thing in the time I lived there.

Here's a chart to help you get started: https://pbs.twimg.com/media/DL8gbEoX0AAcwAq?format=jpg&name=...