I have two of the Insignia SE200's in the front of my 2002 SE, and they are great tires. They were road hazard replacements for the old Firestone Supreme SI's. They are not performance tires, but the mileage warranty is great, and they handle quite well. If you have a Tires Plus around, check them out, they are the same company as the Firestone Car Car centers, and usually can beat their deals (at least thats according to the manager at my local one).
I'm not a heavy modder, just an everyday driver.
As for being Bridgestone/Firestone tires, the only problems they ever had were SUV tires from one plant, and Ford having the manual either over or underinflate the tires. I have had no major issues with their tires since I first purchased them in 2004.
Alex
docchaos@gmail.com