I originally owned a very old Hase Kett probably the largest selling and most famous delta trike in the world.
It proved a very capable trike with in my view some shortcomings due to my circumstances and it's age.
It was to long to easily fit in my car
As an early one it was only an 8 speed
unlike the one pictured it just had a straight lower chain run to rear cassette so flapped about a lot
The rear derailleur was very vulnerable to being struck by lumpy ground.
The Python looked to answer most of those issues my first was 15 speed with a very short chain
No bits hanging down to bash
Very short the wheel base was 0.91 metre ! so fit easily in the car.
Pedal steering is great and allowed me to ride hands free to text, take pictures , eat food read maps etc etc etc.
The first Python became longer to carry my camping gear w/b now 101 cm.
Then I started a series of Pythons [ 1 - 6 ] to try and get them to tilt.
No 6 works and has been to Holland towing a trailer , it is long enough for my camping gear once I build the rear fairing for it.
This years project before winter comes I hope.
It is not possible to judge what will work for you , are circumstances are all different as our driving conditions are.
Camping is tricky also as some can get away with a tent and 4 panniers [ a standard bike load ] and some can't fit their stuff in such a small volume.
If any one tells you there are loads of problems with deltas i.e cornering or FWD with traction ask them which delta they own and how far they have ridden it ! Most are armchair theorists with 0 real world experience.
My posts are backed up with hundreds of miles a year ridden on my Pythons for almost 10 years !
Paul