to get my visitor's visa to come over to Doha to be with hub. It's valid for one year (could have been for 2 or more, but I ticked the wrong box duh).

It allows me to stay for 3 months at a time - they wouldn't allow longer at the time I got it last April.

Not sure if same type of visa is available apply for parents' visits, but worth asking about it, perhaps, if they intend visiting often?