I still use my ProVrai standard and mini purchased many years ago. They still vape great and the build quality is top notch! However, I recently purchased two Jac Vapor Series B mods with a dna 75 W board and the build quality is also very good as is their customer service (they are located in Scotland)! These are about $75.00 each and well worth it. Many of the other mods I have purchased just do not impress me and find their way to my Vape cabinet and get limited use.