For one thing, no one can really promise that anyone will like anything. One would have to know someone very well. Beyond that, it sounds like a sales pitch. [/quote]

It does.

[/quote] I wouldn't trust it as a promise. "I promise you'll like it." - That's sufficient.[/quote]

It's the modal that would also put me off believing the speaker. Too emphatic for my liking, though useful to some speakers no doubt.