Top Notch
I've had a great experience with TalkMobile, and can heartily recommend them.
Firstly, they are on the Vodafone network, which consistently demonstrates the best 5G coverage where I live. Secondly, they consistently offer some of the best SIM-only deals available in the UK. And thirdly, when I needed to contact Customer Services today, it was an A-1 impeccable experience; polite, efficient and generous.
I hope they continue to go from strength to strength as a company, and I'm very glad that I've opted for their SIMs.