I test rode a Giant Rapid 3 a couple weeks ago and it was FAST! That was a great bike so I’m sure the Rapid 2 is just as great and probably better. The Rapid 3 was out of my price range so I got a Giant Escape 2. And that also is a fast bike and I love it and am happy with my purchase. I guess you have to ask yourself how much riding you plan on doing for the money. I ride my Escape 2 300-400 miles a month. If you plan on riding less than that then is spending that much money worth it to you? There are great bikes for cheaper, ( like mine ) so figure out your plan first. I can’t tell you about other brands because I’m sure you can tell by now I’m a Giant fanatic!
