I had to replace the alternator, but have had no other issues. The car is roomy and comfortable, and I love the theater seats. Decent mileage - 20 mph. Back seats can be collapsed to have enough room for many items in the back.
The SUV is roomy with comfortable seats. I have had no major problems with the car since I bought it used in 2010 or before. I have 186,000 miles on it. The heater seats are a plus. I get good mileage for an SUV - 20 mpg.
The 2007 Buick Rainier has an average owner rating of 3.89 out of 5 which ranks it #20 of 23 other Midsize SUVs.
Overall
Front
Rollover
Side
Moderate Overlap Front
Side
Roof Strength
Driver-side Overlap Front