1. are you happy with the kit? yes
2. was it worth it? yes, overall it is a great unit.
3. have you had any issues with the kit? other than the ecutek part (licensing, getting correct ROM sent to us), no.
4. have you had any issues with your car (since kit was installed)? not a peep.
5. are you satisfied with the performance gains? yes. i feel like I am driving a very fast NA car now, like a porsche carrerra 2s.