I chose One Day Tests to monitor a blood parameter because they had a tidy looking website, good reviews and to be honest were a little bit cheaper than alternatives.
I was rapidly notified of the test's despatch and it arrived next day.
Very clear instructions and probably better arranged than other finger prick tests I have used. Helpfully some of your information is pre printed on the sample labels which is a nice professional touch.
I posted the return package at about 11am and had my results by email the following afternoon. Very clearly explained.
Should you choose and require it there is also a follow up option to discuss results with a doctor, I did not, but the process was well explained and looked straightforward.
Will use this company again in future.