I agree with wasinger that the phrase "get what you pay for" is not the best choice for this situation because it's a bit more nuanced. I'll also preface the remainder of the post by stating that I don't have actual experience with LMS so if I'm wrong, please correct me.
As I understand it, LMS will dyno their vehicle and release new versions of their tunes based upon the mods of each person's car, but they do not completely individualize each tune to each individual customer car, unless you are willing to take the car to their shop and have them dyno tune it. I am uncertain if this carries additional expense or not.
Similar to LMS, Unleashed has prebuilt tunes based on various modifications that are available. However, Torrie does not just push out an update, rather he gives the option to have customers data log and adjust their tune specifically to their vehicle. This does require a bit more work, but not a ton in my opinion. Torrie is great about after-the-sale support too, unbelievably fast in his responses and patient with questions you may have.
I don't believe that any two cars are exactly alike and therefore using the exact same tune on two different vehicles can produce different results. They may not be drastically different results, but they're still likely to be different. Some people are very satisfied with the simplicity and ease of use of a tune that is updated periodically and requires no more effort than plugging in the tuning device and loading the new tune. Some people prefer a tune designed to their specific vehicle and will be willing to incur the additional work needed of either getting the car to a dyno for tuning (typically easiest and quickest but costs money) or performing the data logging needed to adjust the tune accordingly (likely will require multiple runs/time but free) to get the best experience out of their car. It may not turn out to be a huge difference between the "plug and play" option and the "vehicle-specific" option, so it really comes down to the individual and their comfort level. I don't think either is "right" or "wrong," just different.
I've never dealt with LMS so I'm certainly not going to say anything disparaging about them, but in my opinion Torrie offers a product that can produce at LEAST as good results at a lower price, and does it with terrific service. That makes Unleashed a winner in my book.