Picked up my Tumble MtnGLO 1 today, got a decent deal on it from Campsaver with a footprint. I set it up right away at home and spent the afternoon in it, everything seems to be 5 star so far. set-up was simple and quick, I was a bit worried about the color but its not bad, brighter than some tents but I think less visible than a bright orange or yellow, and yes as others have said the sun shining through is very cheerful. love the pack size and weight, nice big vestibule(1 or poss even 2 packs should fit), zippers seem to work well, good door, 2 velcro strips(and zipper) on the vestibule storm flap, 1 fly vent, interior is pretty roomy for a solo tent(im 6' 185lbs), my own internal measurements are 41.75"/30.5"W(mfg says 43"/30")(head end space is great and foot end has plenty room for me to move my feet and legs around enough to be comfortable), 33.25"W at center floor seam, 7'6"L(plenty of head and foot space even when I sit up I don't hit the wall), 39.25" center ht(mfg says 37")(I can kneel up if I spread my knees apart a little), all in all I am very happy with the roominess. just so you know, in some pictures online the tent looks like its an all mesh top but most all of the ceiling is solid(but again I am happy with this), ventilation doesn't seem like it'll be a problem as there seems to be a good ratio of mesh and solid walls. take down took bit longer but everything went right back into the stuff sack easily. I am really looking forward to using it kayak camping this yr, maybe even do a little backpacking.
This review was written in the old system and had content requirements that are different than reviews written today.