Hi
I did a google search and came up with a web site called
www.consumeraffairs dot com and when I went to the travel section there was several complaints on there regarding SMARTOURS.
Be careful to always check out any potential company thoroughly.
Ya know the old expression"if it seems to good to be true it probably is"
When I continued my searching I did find some positive comments on tripadvisor and on this website so not all is negative.
Try entering smartours in the search feature on here and see what you come up with.