I have the H&R and i absolutely LOVE them!!!! they aren't too rough for daily driving and yet you can still dump it in a turn or a coner and it handles like an indy car! LOL I would reccomond the H&R personally... i have heard that the eibach are a little rougher riding for daily driving.
I have eibach on mine ZX3 and it handles like a dream. they have really great service and they are cheap.I get all my performance mods and styling from Naylor Motorsports. they are really good people. their number is 1-888-699-5256