The door clearly will last, but some of the detail for its construction is pretty terrible. The top and bottom mortice and tenon joints should have a haunch, or put another way, it shouldn’t go all the way to the top of the style. The fitting of the lock isn’t inspiring, it should be rebated into the style not planted on. It all suggests very quick construction.
The detailing around the panels should be scribed into the mortice and tenon for a quality door. This is where the moulding runs right through the mortice and tenon and a matching shoulder is cut. One of the ways it was done before spindle moulders would be to carry the moulding an 1” or so into the joint and with chisels carve the scribe. The next quickest way was to just mitre the moulding together, but if anything moved the joint would open up. The fast and cheapest way which is what your yours has is to blast it around with a router bit. The last way which is also a quality way is to plant on mouldings to hold the panels into rebates.
I’d say original glass reused on a 70s made door.