I have a few Brora items that I have picked up over the years is sales, clearance etc and IMO they are the best. Gorgeous colours, soft, luxurious and I am still wearing them years later. I also love their wrist warmers and treat myself to a pair every winter. I don't think their customer service is always great I feel they can be a bit snooty.
I also like Pure collection. I think they have some lovely designs. I find them very soft not the quality of Brora but still very good IMO. I have always found their customer service really good. I have a number of pieces that I have had for many years and they always wash and dry clean very well. They also have some great sales.
M & S - I have bought 2 cashmere jumpers this year and I have been impressed. Very warm, soft and lovely designs and a great price especially if you can pick them up with a 20% discount. They have washed well and when I needed to exchange sizes customer services were lovely. The 20% promotion had finished but they honoured it for me.
Wyse London -
I was very disappointed in the quality of their jumpers especially as they market themselves as top quality. I had also seen an article in a magazine by the owner of Wyse. She was basically giving a rating to other high street cashmere jumpers as if she was an expert, so I had high hopes. I had wanted one for ages and decided this Christmas to ask everyone if I could have money as a present so I could purchase one. I really wanted the Maddy style (black with gold stars). Honestly, it was thin and scratchy and it went straight back. However, I was then given one of their scarves as a birthday present and that cashmere is much softer and better quality.
Tescos F & F - I don't any pieces but when I have looked I am quite impressed. They are not top quality but I think they are pretty good for the money.
As for bobbling, piling - all my cashmere jumpers have done this, some sooner than others. I just use a cashmere comb and problem solved. I think the initial layout is expensive but I have found my cashmere to be an investment and all my pieces have lasted many years.
I love cashmere and struggle to wear any other wool, although merino wool I can tolerate. I love having a mixture of different brands and always looking out for new. I haven't tried Pringle or Jaegar cashmere so I will be going on the search for those brands.