I ordered a home trial followed by a pair of glasses. All deliveries were extremely fast. Altogether I paid about £35 which is crazy considering the service, fast delivery and glasses themselves were included. I found out that they actually accept returns on prescription glasses as well which is really impressive. I also spoke to Specscart on the phone twice and both times they were very helpful and competent. Amazing service overall.
The only tiny criticism I would have is that the website could do with more options for very large/wide frames for those of us with big heads. However, this seems to be a problem throughout the industry, so Specsart is no less good in that regard than any other opticians.