Before considering this attraction there are two things you need to be awre of - it's expensive and it's very cold. If you are prepared to put up with both then it is a brilliant experience. We were there on a sunny day and the views were superb. The driver / guide on the Ice Explorer was both informative and entertaining in about the right mixture. I would imagine queues could be quite long in peak periods but we arrived fairly early without a reservation and didn't have to wait too long. The restaurant area and shop were very crowded and the food didn't look very good - just had coffee and took our own food following the advice of other reviews.
Overall this is an expensive attraction but is also a bit of a "bucket list" thing to do. The drive down the Icefields Parkway to get there is an experience in itself, with amazing views at every turn - well woth the visit.
If you own or manage Columbia Icefield Glacier Adventure, register now for free tools to enhance your listing, attract new reviews, and respond to reviewers.