The lens has already been discontinued and replace by the EF 28-300mm IS USM.
You will not like this lens given its weight, size, non-IS, push-pull. The only reason why you would want to buy this lens is because of its focal length as it covers from 35mm to 350mm, one lens for all. However, if you are using 1.6x cameras, then you may find that it will not be wide enough for you to shoot.
In terms of quality, it's not too bad.
With that kind of price, I would suggest that you buy the 17-40 f4 and 70-200 f4 plus a 1.4x Kenko TC to reach 280mm. Price ~ <$2,500. But you will have to carry so many items which you may not like it. Therefore, you have to weigh it by yourself.