Any feedback on Daikin FTXG25C and also FTXS60B or FTXS71B?

Does any one has any opinion on FTXG25C? (for a bedroom)
and also FTXS60B? (for a study and living room kind of area)
Both of them are R410 coolant. Is it still ok to purchase a R22 coolant unit? Is there risk that 5 year down the road you cannot get R22 coolant?
Thanks in advance.

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