Hi - thanks for the question. I’ll post an answer to this at some point, but I’m also hoping some of our community will chime in too. (Matt Fishman and I answer the most here since we are the main developers as you probably know, but users do also post helpful answers.) So for now I’ll post this comment to ask some more questions.
Before I answer though, could you say a bit more of what your goals are? Do you have a specific system you are working up toward studying (Ising model or another one)? Or are you just wanting to do some test calculations to get a feel for what kind of results are possible with MPS, DMRG, and tensor networks? If you do have a specific system in mind, are you after ground state physics only? Or real-time, excited state, or perhaps finite T properties? And are these properties more conventional ones like local expectation values and correlators or things like entanglement entropy or even other properties? (It’s ok if you don’t have answers to all of these questions, but if you do to some it would give a better idea of what you are hoping to eventually do with tensor networks.)