I used studio twice, once for plates, they arrived broken. They couldn't replace because of stock so I asked for a replacement set that was the same price as mine but not on offer so £5 more.
They added the £5 difference to my account, which I thought I had paid off, then added interest. It took a lot of faff and phone calls to get them to remove the balance.
The second time I ordered a tikes rocking horse, it came with holes instead of the tikes label. They ordered a replacement and the sale had finished so they added the cost of the replacement to my account and removed the cost of the (on sale) original item. Same item. This time I was on top of the whole account thing and got it rectified before interest was added, again with a lot of faff.
After that I closed my account and vowed not to use them again.