[UK] Littlewoods - Ordering on credit

Just wondering if there's anyone here, preferably younger/less established credit ratings who have ever purchased anything from Littlewoods? Or even anything similar like PC World on credit. I work 45 hours a week right now and I'm contemplating getting a laptop on credit because fuck £600 leaving my account in one go, and within a year you're able to pay whatever's left and avoid the interest so I could bring it down a bit and then pay off the rest that way. Just wondering if they're actually good to order from and how Nazi it is to buy something on credit these days as it's personally something I've never tried, I don't even know what my credit rating is I only have two rolling contracts right now, one on my phone and one on my internet and they've been going well so afaik never been in debt, behind on a bill etc.

But yeah, if you've so much as ordered on credit before as a first timer let me know, personally got a mate who's 18 and he managed a £1000 loan on a part-time job so I know it's do-able. But at the same time I have flitted all over fucking Europe in the past 3 years which isn't going to look great for me.

E: Passed the credit check, they phoned me this morning. Should get my new laptop tomorrow!