I have a Husqvarna Platnium 750 and the thread works fine! I do find though that when you come down to the last little bit on the spool the machine gets cranky. So what I do to remedy that is use one of those spools you put on the side of your machine and then the thread has to come of the spool higher before going through the tension dials of the machine. It works fabulous!
I just got the latest Connecting Threads catalog in the mail two days ago and I was also looking at the threads. There are soooooo many more yummy thread colours and I think they are calling my name!!! :)