I've used a few of their different meetings rooms for business and each time it has been a smooth process. The location is great as it is easily accessible from most of Northern Virginia, and it is right next to the Reston Town Center so there are great food options for lunch or dinner breaks.
The staff is friendly and accommodating, and the rooms are exactly what you'd expect. Professional, clean, and well stocked with tables, chairs, white boards, etc.
I haven't stayed at this hotel since I'm local, but I've used it quite a bit for meeting space and will continue to do so.