Is this cat tree big enough for a large cat?

Yes. It is 65 inches tall with a widened top platform and an expanded condo, and the structure is rated to hold up to 33 lb. That makes it a better fit for big cats than compact starter trees.

How many cats can use it at once?

The multi-level layout is designed for more than one cat to play at the same time, with several perches and a condo. Two or three cats can spread across the levels.

Will it tip over when a cat jumps on it?

The wide particleboard baseboard is meant to prevent wobbling and tipping, and the frame is rated for 33 lb. Place it on level floor and against a wall for extra steadiness.

What scratching surfaces does it have?

It uses sisal rope coiled around the posts plus scratching ladders. Both are there to redirect scratching away from furniture.

Is assembly difficult?

The instructions and necessary tools are included, and the maker says it installs quickly by following the step-by-step guide. Expect to spend some time on the multi-level build.