It's very easy to use, it has many great options that are not available in other similar tools like SASS or SCSS (at least for my knowledge). The price of less seems quite expensive compared with others but I think this tool can be useful because you get so much more functionality than what most people expect from just writing code using standard css would do! Using LESS makes your work easier when making custom stylesheets without having any issues about overwriting variables etc., which sometimes happens if we don't know exactly where our variable will overwrite another one since there isn’t an "overwrite all except these ones" option yet as far i remember; This really helps me save time during development phase by knowing how things should look before actually coding them out manually into HTML/CSS files.