Solid cat tree and stable! Yes it is mobile if you decide to change locations! Just hold the white tube and press in downward motion  to release the suction from the ceiling! The first photo is showing how tall it is and the second photo shows the plastic suction thing that keeps it anchored to the ceiling. My cat has been jumping on it and it hasn’t budged from the ceiling 
Had Handy Pro assemble and he did a great job, the cat tree next to it is also from Wayfair I chose to place them side by side so my Lion King could roam from one play land to another !! Highly recommend this for your feline buddy!