I have had 2 new and 1 used bike from Premier and they have been very good.
It is still a family owned firm, but has grown a lot, when I bought my first bike I got to know the names of everyone in the shop, because there was only about 4 of 'em, new place is very big, and very busy, but still get a warm welcome.
Don't think it matters who you talk to at Premier, they have several people in sales who should all know what bikes they have available and the prices, or if you want to feel important call back and ask for Darren as he is the sales manager, but I bought one bike from him, another from a fella who has since left and one from Andy the owner - all great deals.
They have always looked after me and been very helpful, plus it is my local dealer so a no brainer for me to go there, always better to buy fairly locally if you can - assuming the deal is competitive and you think the dealer is good / will look after you, but I would rather have a trek to a dealer I trust than use one I don't.