Definitely too many rebrandings and different areas within the shop. Next do plain cardigans that are far better than M&S.
I tried to buy children's clothes last December. Everything was sparkly and looked cheap.
What's the point of asking for feedback if nothing changes for the better. It's on FB too, with complaints about the poor quality, bra sizing, garish fabrics etc etc. I agree that the website is really abysmal.
My local store is small and therefore wouldn't expect a full range, but it really is pants. The only staff around last time I was there, were on the tills, except for one chap with a badge who wandered round the shop talking loudly on his phone. Clearly a manager and clearly too high up to deal with mere customers! I wanted to ask him questions just because he was irritsting me by talking so loudly and was oblivious to customers.
I can't find an M&S bra that fits these days. I save up for Rigby and Peller in the sale and know what size I should be, but need more bras than I can afford in R&G. I have bought a reasonable fitting one in Sainsbury's though, as well as knickers.
Unless Marks change pretty quickly, improve their website, stop producing those ridiculous and expensive adverts and return to core basics, I don't think even their food sales will save them. I bought macarons in Lidl for £2.50. A very similar thing in Marks was £6. No contest!