The Funfetti was slightly better than Diy or die...so i won't bother with that again.
The Melon was surprisingly quite good and for a change, like on a hot day in Summer, i would re-buy.
The blue slushie. NO .Do all blueberries taste like roast chicken crisps?
I have the strawberry ice cream,cloudy lemonade and apple and strawberry in tanks ready to try.
I didn't try Funfetti because of DIYorDIE - I suspect there are four or five there that are DIYorDIE recipes: The Raspberry Ripple Macaroon one, the Funfetti, Strawberry Ice Cream, Strawberry Marshmallow, and Perhaps the Caramel Pistachio Tobacco one. Briefly tried all but the latter & Funfetti, and none were outstanding - should try them again before I ditch them though.
Don't much care for Melon anything, and most blueberries I try taste like mouldy or foisty ones.
I tried the Strawberry Ice Cream: OK, but nothing mind blowing. I don't like lemonade - the one Chefs made was very nice but I'd had enough after a short while. I had the Apple Muffin recently ..couldn't get the apple flavour out of the tank without a really good wash, and didn't care for it enough to dedicate it's own tank to it!

I don't think any of the others really appeal to me.
I'm only trying 10ml of these others to see if there is another hidden gem.
But like you say Donut and Scones and jam are the best ones,so far.
That's what I did.
I did suggest that until the law changed, they make 100ml bottles of the Doughnut at least - said they were thinking about it, but it didn't happen. Like MCV, I'd buy a litre of it given the chance!
I also mentioned concentrates, but they seem happy as they are for now.
That doughnut one is very unforgiving with coils: get near empty and it's dead! I don't get that if I run dry of MCV and catch it right away, nor with any others it's happened with.
It sticks to cold windows relentlessly too

...not stopping using it though!
I'm looking for a really nice raspberry cream or custard one that doesn't smell slightly like burnt wax on the air (I get a muttering whinge if I use something like that!)
I looked at raspberry flavours recently - Chefs don't seem to have a whole lot of them, which suggests there aren't a lot of really good ones - I'll ask which is the best, and may also try the Raspberry one of the Strawberry Fields range.
Must dig out my Chefs Raspberry Doughnut and try that again ...I seem to recall it was good!