Don't throw out the baby with the bath water now. The Intellicad version will naturally have the weaknesses of that program bought over, but don't forget, this is not the only platform on which Carlson will run. Some will not want to go the Civil3D route and Carlson is a viable option for them. You then have 2 real good choices. (1) You can run the Carlson Stand-Alone Version, or (2) you can load Carlson on top of AutoCad Map or plain jane AutoCad. All work equally as well.
If you have problems with Intellicad, that's fine, but remember that is not the only option available to you. There are 2 or 3 other ways to go to implement this product that do work well.
The Intellicad option is the newest way to go and improvements in the base product are bound to result as this option grows in popularity. What Intellicad fails to do will be availabe in the Carlson side of the menu. The programmers were working on the package when I was in the Carlson school. As we all know, new releases with actual changes and improvements do come fron some software packages.