The guys did a good job installing them. It took them most of the day (9:30am till 4:30pm). Well we did have 14 windows and 2 sliding doors to cover.
The bi-fold shutter doors.
The only minor comment I made to the installers that, the bi-fold doors did not come with small handles or recessed handles to open and close them. At the moment, one has to slide their fingers within the shutters to disengage and open them.
Another point was that, the bi-fold joints did not come with bolt-down small hinges, so one can lock them in place, so they do not wobble and stay firm in place.
The above would not have cost any more than $10 in parts and 30 minutes or less to install.
They are the finishing touches after all.
I guess I may have to do a trip to the hardware shop and purchase few and do it myself.
But overall, we are happy with them. Time will tell...