We've used the old Metcal stations for many years. They are the best power supplies and tips in the industry. We threw away our "comparable" Hakko yellow/blue stations because they simply do not heat the tips well, and even brand new tips don't keep a tin. By contrast, we have years-old Metcal tips that still work like new, heat in 5 seconds, and handle any size joint.
I love these Metcal Soldering Irons. Almost instantly hot with quick recovery time from big soldering loads. A huge assortment of tips and temperatures are available. What's not to like?