I think you have miss understood the point I was trying to get across. I will admit that I have never been in the Niagara tunnel. I have been in that style of tunnel though. The point I was trying to make is that it is better then nothing. Yes, the sky ventures are why and far superior, and in December when the Montreal one opens, I highly recommend it over the Niagara style tunnel. It would be easy for me to only defend the sky ventures as I am hitting the Paraclete xp one at least once a month right now. But for those who need help now on their solo skills, or those who have just spent approximately $1500 on their solo, or those who are just not a financially able to travel any real distance other then a couple of hours, this tunnel does have the ability to advance your skills, although not as easily. Again, if I move back to Canada, I will be using it regularly to continue to sharpen my skills.Therefore, I too stand behind my opinion.
I think there have been some valid points on both sides of the fence.