Are Golf Simulators Accurate? - A Quick Hole on SkyTrak

I absolutely am jazzed about my golf simulator. I use SkyTrak and play a hole with the sun shining through the windows on my garage door within the golf cave. So the image on the impact screen isn't the best. In so far as accuracy goes, I would say it portrays how I hit the ball about 90% of the time. If I could get my consistency and ball striking down, SkyTrak would make me a much better golfer.