I play a warlock and I havent found it too bad - and it quickly gets more manageable with a full party. Have played through the druid enclave (havent rescued anyone yet) and walked very far south, had an awesome fight with four redcaps, and am now just going to do my second ever long rest. I think with three short rests instead of one, it'd be fine.
My 'lock has done fine with zero long rests...but it is not a 'lock without spells.
Limiting long rests because of the plot made sense to me, but the mechanics are already forcing me to change play style.
The DOS style (shortened playing field), also changes things dramatically, so there are way better build choices than what has worked for me in Fantasy grounds.
If Larian stays the coarse I can see the most popular mod being a total conversion to 5e.
