Like 'used to' and the Past Simple, 'would' with 'always' suggests an old habit that stopped in the past. Unlike 'used to' or the Past Simple 'would always' suggests a willingness to do the action or amusement and/or annoyance. It can also suggest an extreme habit. The opposite is expressed with 'would never'.
My grandmother would always get me a book for Christmas.
Sarah would always come late to work on Mondays.
Danny would not always come out with us.
Alison would always end up in a relationship with the strangest men.
We would not always go abroad for the summer holidays.
It is important to remember that 'would always' is not the same as ‘used to’ or the Past Simple. Would cannot be used to speak about past facts or generalisations, only past repeated actions.
I used to be painfully shy when I was young.
NOT I would always be painfully shy when I was young.
BUT I would always be shy when I met new people when I was a young boy. (In this case 'would always' is describing a repeated action – meeting new people)
'Would' can also be used with; constantly, often or simply alone i.e. 'would' but attention must be given so as not to confuse this function with conditional structures