i heard,, delay effect is very good for touch style guitar technique.. is that right ?
What do you mean by touch style? Give us an example of artists.

Generally delay is great for adding ambience and 'space' to your sound, listen to 'Comfortably Numb' by Pink Floyd, particularly the solos, for a good example of what it can do.
Quote by DeathByDestroyr
What the hell is a G&L.

Quote by Flux'D
Gay & Lesbian I think, the box smelled funny
Greg what did you send me??