I have the Lee pro 20, the RCBS pro-melt, and the Lyman 200#
bottom pour and have cast 1,000s of bullets with them
In my opinion the Lyman was the best, but the RCBS ran a close 2nd.
The Lee is a good pot for the money unless you plan to do a lot of casting
The Lee is cheap, but you will end up replacing them.
A good melting pot will coast more to start, but will be cheaper in the long run