how real do your electric 'fireplace' flames look?

I haven't really seen one of these in person. I had assumed that the 'flames' on the electric fireplace units look hokey and unrealistic. But some folks on another recent thread commented that they really like their 'fireplaces' and use them often in their RVs as well as some even taking them into their homes. So if you have one of these, just how realistic do your 'flames' appear? And what brand/model do you have?

I didn't want to hijack the other thread, so I started a new one. Thanks for your input; I could see having one of these, if it doesn't look too fake.