FYI....
There are 4-5 JB+ for sale in the classifieds right now - If you buy used and keep it you will have saved yourself probably 30-40% if buy it and don't like it you can likely resell for what you bought it for
Alternatively If you're only considering buying new I think mike x-ph offers a money back satisfaction guarantee on the JB+ (maybe other platforms as well - not sure)