Hi, yes, JetEngine is much easier to use. It is also far easier to display almost everything in a highly visual way on the front end, IMO.
Like you, I found Toolset challenging.
With regards to switching posts, as per my original question, I ended up using the superb WPAllImport. We had thousands of posts to migrate and it was still a challenge but WPAllImport made it possible and a darn sight easier than anything else I know of.
Which brings me to another point of difference between Toolset and JetEngine. Toolset’s support is, and always has been excellent. JetEngine not so much. I won’t go into detail here but as an example, on three separate questions, I have had their support tell me something isn’t possible. Only upon pressing and rewording my question several different ways to Sunday did I eventually get them to understand what I was trying to do and give me the solution. They also argue a lot when you tell them something isn’t working right and usually just say ‘you must be doing it wrong’. Lots of time spent sending screenshots to get them to admit to bugs.
So, if good technical support is really important to you, consider sticking with Toolset. As mentioned above, excellent.
For the record, if Toolset’s support is excellent, then WPAllImport‘s is out of this world. So helpful! And, as for this Post Type Switcher plug-in that this is posted under? As you can see, non-existent.