I run the Lucky8 flexi 75mm kit on my rig. A couple of observations about that kit:
No templates included so there is a lot of holding the flare up, mark, cut, mark, cut, mark, cut action.
The fastenings are cheap and rust after a while.
The flares aren't flush mounting. Aka there is a lip the runs around the perimeter of the flare for the rubber strip to mount to, this means the base of the pockets where the screws goes sits about 4mm off the body. To get around this I punch out 10000 little circles of rubber and made a kind of spacer that fixed it.
After being on the car for around 5 years they are discolouring.
Doing the rear doors is a massive PITA.
AND allocate at least 10 hours to fit them. 
Other then that they have done well. I have tried to tear them off the car more then once and they seem to be pretty strong. I have pulled the heads of the screws threw the plastic more then once but its an easy repair. 
For the money I cant really fault them. I can't fathom anyone spending the $1400 on the les Richmond fatboys for something that gets damaged so easily. 
I run -6 16x8 dynamic steelies with 315/75r16 tires and the fitment is spot on.
Hope that gives you some insight.

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