I was trying to remember what the name of mine was and I found a pretty long youtube from backcountry edge on the shifter 3 if that helps.
I have the Drifter 4, which I think the Shifter may have replaced. I really like the value of MH tents, when the footprint and loft is already included it's a great deal. I use the Drifter for rafting, things that are important to me are ease of setup/takedown, stability in wind, ventilation, and overall ease of use since we are moving everyday. These tents go up and down in a flash, two poles that are connected, X them out, clip it up, done. Fit and finish is really good, good materials.
It appears the couple items that annoy me about the Drifter they've remedied in the Shifter. The Drifter has a goofy plastic foot where the poles, ground cloth, and fly all snap into. It works fine and I've never had one break but it's annoying to use and get things clipped right onto. (a lot of time we sleep with the fly ready to go on one side just in case and therefore have to jump out in the dark of night occasionally with the rain falling and clip it up) The Shifter appears to have the old standard grommets in the corners, easier to setup and takedown. The Drifter didn't come with enough guy lines to really set it up correctly for a prolonged storm, so I had to add a few. Overall though it's plenty sturdy for a short squall on it's own. We do a lot of desert camping so short, intense wind and rainstorms are the norm.
Really it's just old school simplicity that just works. X frame, easy to use, gets the job done. No weirdly shaped pole designs that end up bending out after a few years. Perfect size for two people with extra space around. Overall I think you'll be happy if you are just looking for the basics at a good quality with low hassle.