My wife and I bought a couple sets of vanities as well as a full renovation of 2 bathrooms from Siema 3 years ago. Their product knowledge as well as the industry knowledge was excellent and pricing compared to what we would have to pay for custom cabinets, top sink exc. was also very good. They worked in our place for a couple weeks and were very friendly as well as accommodating with our needs (I can be quite picky!)
I would strongly recommend them, especially if you don't have any ideas as to what you are looking for, they have a really good selection, especially now.