What exactly are Quest bikes?

My wife has about 10-15 years old, but very rarely used (thus in quite good condition) bike with a large “Quest” label in place, where all other bikes has its brand name.

By reading all the labels on that bike, I managed to read this:

Quest Courage, 20 inch, 21 level Shimano, Quest Courier

Not much, but I thought, that using Google etc. this will allow me to learn more about these bikes. However, when I tried to search the Internet, I found very little toward nothing. All I found was this site, but it seems to be about completely different product.

On some old forum there was a post claiming, that this is a marketing name for Dick’s Sporting Goods, but searching this site for Quest name brought no results around bikes.

I also read a few claims, that this is a very, very low-end and very low quality line of products. Some even said, that if you plan to ride more than 10 miles on road or take this bike off-road then you should definitely forget about “Quest” line.

All these claims seems to be contrary to what I have and to what many bicycle repair shops claimed about my wife’s bike (saying, that it looks like a good quality and in good condition, taking its age).

Can someone shed a light, what exactly is this brand? Is it still in production or when it was produced, if it is off market right know? Is there any website or support or anything?