It's far more satisfying and will entertain you for far longer in my opinion. In my experience with managing a big club, it's really not challenging and satisfying enough because your expectations each and every year are to simply win everything, and more often than not you accomplish that. It becomes super redundant very quickly because there is simply nothing left to play for except finding quality regens and turning them into world class players.
With a LLM team, you feel a far greater sense of accomplishment. I can't tell you how awesome it was when I got my 8th level Rugby Town to the Premier Division. I think everyone should give it a shot to see how fun it is to have SERIOUS gameplay limitations in terms of transfers and salaries. It requires a much more hands on approach to find the perfect players and staff for cheap, and it feels great when you find those lower league gems. This may sound weird, but you also feel more of a connection to your players, because when they perform well you feel proud in the sense that you put in the time and effort to find that player.
I'm currently wrapping up the 2017-2018 season with Rugby and I still want to keep playing. I still have goals of winning the Premiership, qualifying for a Euro cup, and hopefully one day winning the Champion's Cup. I'd recommend starting no higher than Blue Square North/South to get a real LLM experience where you have absolutely no transfer budget and have a terrible payroll. If you have the patience, I actually suggest starting as low as I did (requires a database download and goes down to level 11) or maybe one level up (7--one below BSN/S