I have a Pleione maculata but I can't help much on culture... not sure mine survived the dormancy
I also have a Pleione Erebus 'Redpoll' which is just coming out of dormancy now.
Anyway, maculata is meant to flower a lot earlier than others (October/November). When I bought one in March last year the flower had already been and gone and it was growing. They are also warmer growers. Some of the advice I have read says to overwinter them above 12C other advice said 15C.
I think mine got too cold as I kept it with the Erebus which likes it colder, although it may still recover
The flower on my Erebus lasted maybe a week from memory (I will have to check that). They are quite a short flowered orchid.