Nowhere as good as they used to be.
I have bought from Sourcemore many times and have always found them excellent. Their delivery times to the UK are far better than other Chinese based companies with an average delivery time of 8 days. I had a problem with a tank I purchased from them which leaked. Once I had sent them a video showing the eliquid leaking from below the air hole ring they offered a replacement but not just another of the same tank. They offered to send any tank up to the same value. I choose a different tank that they where selling in their flash sale and it was delivered 6 days later. They may be a little more expensive for some things than some other suppliers but for delivery and customer service they cannot be beaten. What a change in delivery time from my last review. Packages now take over 3 weeks to arrive. When Temu and Aliexpress offer free 7 day delivery on orders over £15 and £8 Sourcemore still charge for postage on all orders and take weeks to arrive.