Well, I made it but the end result looks nothing like the pattern. I made a toile and was very glad I did. I realised that the tucks were doing me no favours so I got rid of them. I also narrowed the neckline and raised the back - and I had to play around with the fit a lot as I was between Small and Medium. The instructions appear to have been written by someone determined to make a simple dress as complicated as possible (every seam is either a french seam or bound) so I ignored most of them. I did try to follow the instructions for the armhole edge but found it very fiddly and I`m not pleased with the end result (it involves more bias binding and creating a tapering hem).
All in all I have ended up with a frock suitable for wearing in the garden in hot weather - but probably only during Lockdown when not many people will see it. (The pattern has already been flung in the recycling bin)