After riding The Smiler for the first time in over a month yesterday, I have come to my final conclusion on the ride.
It is a good ride and a great addition to the park. The public seems to love it which is the main thing. However it isn't the easiest ride to enjoy. You have to brace yourself at many different points in the ride for the various different jolts or uncomfortable movements. This means that you focus more on bracing yourself than enjoying the elements that you are passing through. Yesterday we all came off The Smiler with very sore shoulders, and this persisted for a while after riding. Rides like Nemesis or Blue Fire for example allow you just to sit freely and enjoy what the coaster does, I cannot do this with The Smiler.
Also, I have never heard such an horrendous rattling noise on a coaster as I did yesterday. Throughout the whole ride the row behind sounded awful, I'm almost certain this can't be normal and I've never heard anything like it on any other coaster I have been on.