I recently purchased the WE40 pro pack with base at the recommendation of a friend who produces custom hunting knifes . There is definitely a bit of a learning curve so its great that WE includes a practice blade. However, the learning goes quick and over the past few weeks I've sharpened 3 hunting knifes, 4 kitchen blades and and an EDC knife all at different angles and they have all gone from being fairly dull to slicing paper. The WE40 just works and there is a lot of bang for the buck with this system.
I did have a delivery issue where a few parts were missing, but WE took care of the problem and got everything resolved. Its nice to see customer service stepping up when an issue does arise.