If it is similar to the 3D/DT it will be fine. We had a demo from a vendor and it landed on the bare ground fine in a moderate wind.
If you buy this drone to use not in a dock, don't forget you will need a controller, batteries, battery charger and a case (DJI is making one and HPC probably will too).
I am wondering about this also. Looks like it would be much easier to tip over with its smaller leg base, if something went wrong.
Another thing I wonder about is impact shock. When landing a matrice 4d all landing impact shock will be localised to the main body (where all the fragile electronics are). When landing a matrice 4t for example, the main impact force is on the arms, with them acting as a shock absorber of sorts to the body.
Anybody have a matrice 3d that's over a year old with frequent use? Have any problems that could be associated with that come up for you?