The Quest Plus has many great reviews. It replaced the Quest, which apparently had issues. But I think any model can have lemons. There's no 99% reliable brand anymore. Dealer support is everything, but it seems many dealers don't bother servicing what they sell. That's why reviews and forums are so important. Prices are also over the place. Just as an example, the MSRP on the BLQP is $2500, but I've read of folks paying $1000-$1900 new w/o trade. Reading reviews saved me hundreds on my machine.