Hi @Leala20, we are with Guys and I would say that if time isn't on your side and you can afford it, definitely go elsewhere. We are having PGD there on the NHS (would be £10k per cycle) so unfortunately haven't got much choice, but in hindsight I think we would have gone abroad.
I was first referred there 3 years ago and haven't even completed one cycle yet! It was a 2-year wait from referral until the beginning of my cycle. I then had egg collection in January 2019 and had four embryos suitable for transfer. Despite me doing natural embryo transfer cycles so it's possible to have one every month I have only had three transferred so far, with the fourth being transferred next week. The third one was transferred in November and was unsuccessful and I'm still waiting for a follow-up appointment with a consultant. Delays have been due to administrative errors such as missed emails and ignored phone calls - I made a formal complaint about one error which led to the start of our cycle being delayed by five months.
Although they're good when you're actually there, and all the procedures have been fine (albeit unsuccessful, but I won't blame them for that!), the communication has been terrible. I have been tempted many times just to go there - but unfortunately live a six-hour round trip away 
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It was quite stressful at the beginning as I didn't get any of my questions answered and didn't know what was going to happen, but not so bad now I know more. Saying that, my embryo transfer is supposed to be on Thursday but I haven't managed to get hold of anyone to confirm that, so haven't yet been able to book the day off work, book a hotel, etc.
If you look at their reviews on Google, it looks like lots of people have had similar experiences, even those who have gone there as private patients.