Had a deck and gazebo done last year. A year later it's a rickety mess. There's more to building a deck then just using screws and nails. No proper joist hangers were used and now had to call in a proper deck company to reinforce the shoddy workmanship with proper brackets and mending plates because the gazebo roof sagged so badly.
The unqualified labour he used seemed to think breaking off the exposed corners of concrete footings with a sledge hammer was a good idea. That is until the entire top of the footing broke off. Had I not seen them do it they would have just left the beam hanging over the now demolished footing. The footings were also not poured in the correct spots for the Gazebo leaving some of the posts almost hanging off the edge of the footing.
All of those website photos may look nice but the construction techniques are sloppy and poor. Just a lot of toe nailing and wood screws. No heavy fasteners used at all for the main structure. This deck was a complete waste of money.
EDIT: You respond that "I guess you can't please everyone but the most important part is the work got done and you now can shelter from the summer sun"
Look at the photos. This is not a matter of pleasing anyone. This is shoddy and poor workmanship and actually quite dangerous when those posts and footings come loose. The posts were not even placed in the centre of the footings (or what's left of them). There is no excuse for this.
Edit #2: A properly licensed deck company I hired to rectify the issues had said they have never seen such shoddy work; boards that were riddled with nails and simply bent out of the way so that they can be re-used. They removed the footings completely and re-poured them properly (and to the proper depth) and re-built the Gazebo. They drew up repair plans via CAD and were even nice enough to document all of the errors in the event I wish to take legal action - which I intend on doing.