The show is kinda fun to watch but it's so confusing at some points that it can ruin the experience for some people, imagine a No Game No Life but generic and with less soul.
The premise is nothing new and the way they handle it makes it worse, every episode is packed with a lot of expository dialogues, specially when they have to explain their dumb plans to beat the dumb games.
The characters have the same depth as a McChicken, and zero development at all, at least the character design is great.
The explanation for most games is done so quickly that you can't understand a thing, and even if you understood at the beginning you cease to understand once they start revealing random deus x machina shit to get out of situations.
The animation is generic, not bad nor good, just works. The sound track do as well as the animation, there's no memorable one, they are just there.
Liar, Liar is the kinda show you turn off your brain and just watch to have some fun but if you have any critical sense you'll probably have a bad time with it.