I was in the same position as you a couple of weeks ago.
Trawling through all the postings on this topic, one thing caught my eye and that was a post suggesting that the best value for money could be achieved by buying a rebranded mft. The suggestion was to look for Newey & Aire (Newlec) and City Electrical (Ethos) branded kit. I ended up with an Ethos 5902 for a stupid price.
Next question is is it any good. Because I don't really know any better, the answer is yes. Auto rcd testing, no trip Zs so I am very happy. There may come a time when I get to find drawbacks with it, there may come a day when I work alongside someone who lets me use their tester and I find it is better. Until that time I am just getting on getting used to my tester as an extremely important aspect is familiarity with your equipment