In summary, the product appears sound, the workmanship was very good, the on-costs for excess silicon removal are excessive and support post-signing of the contract was poor.
We had our ensuite (900 x 740) and main (940 x 940) showers Megasealed in October last year.
We were quoted $750 each plus $200 each for removal of excess silicon. As I had earlier tried to seal the showers with silicon, I accepted the additional cost.
The ensuite was done first and took 4 hours, the excess silicon therefore costing $50 per hour. I subsequently had a conversation with the sales staff, accepting that I had signed a contract, but asking whether they may have overestimated the amount of excess silicon which needed to be removed. They undertook to speak to the technician prior to doing the main shower. There is doubt as to whether that conversation ever took place.
The main shower took 3 hours, so the excess silicon cost $66.67 per hour.
I accept that the technician we had was very good and particularly efficient, but the silicon surcharge seems way over the top.
I completed an on-line survey at the request of Megasealed and made comments similar to the above. I also ticked the box allowing Megasealed to use my comments on its website. Unsurprisingly, the comments haven't appeared and, disappointingly, there was no follow up to them.
On reflection, it seems to me that any shower being Megasealed would involve removal of some existing silicon, which makes the excess silicon surcharge even harder to justify.