Tatooz,
I agree the 2020's are much more machine than the 2305 (though it is nice). As many on the forum know I have had all three size ranges in JD compacts. My current machine is a little 2320 and I love it. It maintains the property I used the other machines to clear and landscape just fine. I could not justify going to a 2520 or 2720 for my use as I do not do a lot of loader work anymore. I tested them all box blading my drive, doing light-medium duty loader work and hauling, digging, etc. For these tasks there was essentially no difference on my property between each of the 2020 units, but there was a huge difference between them and the 2305. I had thought a 2305 might suit my current needs OK and would not take up much garage space but the 2320 would pull either a 4' or 5' BB better on my drive than the 2305 I tested pulled the 1048L BB it had. That sold me, despite not having much more (if any in my case) HP, the 2020s are stepping up quite a bit in frame weight and "real" tractor design. Your prvious 2305 was a solid machine, but not quite at the 2020 level. Enjoy your new tractor, it is a nice one.
John M