I'm a regular buyer of their vitamen plus and vitawomen plus vitamin supplements - I found these to contain the most balanced allowances (%RDA) of different vitamins and price-wise they cost me less than they would have from other places. So you could buy a higher concentration of vitamins from other places (online or in shop), but you would either lose out on some vitamins (the %RDA of some vitamins would be disproportionately lower than the ones for which is quite high (say 400% RDA)), or you will end up paying a price which is disproportionately higher based on %RDA and variety of vitamins included.

So, in summary, I found the vitamin supplements from SimplySupplements the most balanced and with the most variety given the price. I've repeated my orders of vitamin supplements with them and continue doing so.