I don't own an iguana, but I've read a lot about them and they seem like really interesting pets.
No. They are not. They are an expensive pain in the ass of the highest order.
Special housing, special lights, special food, special vitamins, special heaters, special some more money out of your pocket for the special lizard Vet visit here and there -
That one in the video that the dog went after was a baby. Dog is damn lucky he went after a baby and not an adult or one a lot bigger than that,
My x-wife was a little 'special' in the head and had one of those for a pet. I can't swear to an exact number but am guessing 54" was the longest it got before we started having difficulties measuring it. (that task took both of us doing to be able to do safely) Well past what a simple yard stick (36") would measure. Crazy woman would put a collar and leash (they are freaking FAST) on the damn thing and walk it around the yard. (They will happily munch the heck out of lots of stuff in said yard if given the chance)
Took Roxy (big, full size, adult female Doberman) on a walk around the house property one time and came around the corner in the front to find the x and her iguana on the front porch on that same side as us. Did not know she had come out there with it until the dog got up to the corner and I saw that tail from the lizard pop the dog in her nose as she got close to the corner and came 'in range' of it. Rest assured, that dog backed her butt up in a hurry. That crap was not funny in any way.

Those things DO have teeth. Not much to be concerned with when they are tiny little babies (like in the video) but run up on one a little bit bigger and that changes in big way. Bought that x the thickest and heaviest leather gardening gloves that our local farm store had for use feeding that thing and they worked up until she went to give it a banana that one time and it got overly excited and 'missed' when it lunged and chomped down. She pulled a bloody hand out of that glove that time. Think pointy razor blades on both sides and LOTS of pressure pushing them together here.
from google:
Do iguanas have sharp teeth?
Defensive Adaptations. Iguanas' stout build gives them a clumsy look, but they are fast and agile on land. They have strong jaws with razor-sharp teeth and sharp tails, which make up half their body length and can be used as whips to drive off predators.
