Don't do it. Lloyds used to be notorious for persuading customers to sign up with Alex Lowrie, who Lloyds own.
It sounds good but that 6% rapidly turns into a lot of money, on top of that the transfer fees are £30.00 for CHAPS. They typically forward you 80% of the invoice total and the system they use is VERY complicated.
We used to get letters from the company we used every day ( can't remember their name, but they were in Brighton ), the paperwork was mountainous.
They also set you a limit, say £30k, and it was surprising how quickly you hit that, our customers were not happy with the arrangement either. For an added fee they will chase your customers for payment, but in reality they don't as it's not in their interest to do so, all the while that money is outstanding you are paying the interest.
In short, no matter how tempting it looks, don't do it, you'll loose a sense of owning your own company.
Is it Lloyds by any chance that has suggested this to you?