We're planning on getting a semi-auto espresso machine that also has the ability to use capsules (three types: Nespresso, Caffitaly, and Lavazza A Modo Mio). While I'm not planning on using it for this purpose, I'd imagine my wife will be more likely to use it if that's an option.

As such, I'm interested to know if there are certain brands of capsules that are more highly-regarded than others.

I've read through a number of threads on here around this topic, but none were terribly recent; on that older evidence, many people seem to point to the originally branded Nespresso pods and Robert Harris ones.

But options seem to have expanded, with a large number of brands out there, including fair trade options, and capsules from traditional roasters like Hummingbird (or perhaps are just branded generics?). 

So are there any brands that people can recommend for 2017, and also where are particularly good places to buy them from (that sell them [relatively!] fresh and/or at a good price)?

Note this isn't an invitation for the usual coffee wars thread, please, as I've read it all before!

Thanks for any feedback.