I've switched to Simple for maintenance for two reasons. Firstly, the price - they price match including to discounts, so are the cheapest out there.
Secondly, the fact you can re-start within 12 weeks seems great to me. If I try and go it alone (and to be honest, I'm not even sure I will, but I wanted the option!) I'm pretty sure I'll know within 12 weeks whether it's possible or not. I actually reckon I'd know in a couple of weeks!
I moved to them last week, and after placing my order had to book a telephone consultation, which I was able to do for the following day. That's because my BMI was 23.7 (it was over 30 when I started Mounjaro in January). So they wanted to chat through what my goal was, what my plans were etc. It was really helpful.
As long as your BMI stays in the healthy range they are happy for you to continue on Mounjaro for as long as you want, so no pressure to come off. And as I said above, confirmed that you are able to re-start within 12 weeks if you come off and decide it isn't working for you going it alone.
My husband is with Oushk, so his pens cost more than mine (although he had the benefit of the maintenance discount with the latest pen he has ordered). I have been impressed with them overall, but I think they're expensive. And I do think it's a bit cheeky that if you decide to come off the pens you basically have to pay £15 a month to 'stay on the books' so to speak in order that you can go back on them if you feel the need to without having to get back to a qualifying BMI.
I did a lot of research as to who to go to for maintenance. I was with IQ doctor prior to moving.
So far so good with Simple, obviously if things change then there are other providers out there doing maintenance, so for me it's just about knowing your options, and always having a plan B in place in case plan A doesn't work out!