I think the (sometimes) wasted potential of the 2 post base plate is still better than the always limited potential of the maxjax (for me anyway).
Maxjax portability - I thought I would like the maxjax portability, but I realize how long some projects take and that I might not move it much, if at all. - Potential advantage - Maxjax
I have an 11' ceiling, so I couldn't lift an Excursion/trucks to full height on a 2 post, however the Maxjax can't even lift the weight. Advantage - 2 post.
Either will lift our little European cars' weight (911, VWs) however the Maxjax will only go 4 feet with them. The base plate lift would let them go overhead for me, also letting me stack some cars. Advantages - 2 post
The Maxjax, while very appealing for its portability, has 2 distinct limitations for me, the height and weight capacity. While these are obvious, it is important to note that there may be times when only one of these limitations would apply on the Maxjax but a standard 2 post would get you past the other.
Should I ever move or build a new garage, the Maxjax would still be limited to 4' rise and 6k lbs, while the sometimes wasted potential of the base plate 2 post could be fully realized.
For basically the same price, I can get a 2 post base plate with 50% greater weight capacity and lift height (I am also considering the DL Pro 9F as the OP). While I know I am not exactly the target customer for a Maxjax with an 11' ceiling, I feel you are in a similar situation with a 10' ceiling. If the price were significantly different between them or the portability were the primary concern, the Maxjax may have the advantage. In my case, and possibly in yours, they aren't enough to convince me it's the ideal solution.