I ended up getting the Bosch GLL30 but the reviews seem to indicate issues with the level detection (the laser flashes when its more than 4 degrees out of level and i have been noticing it more lately).
Years later, I would have preferred to get one with 360 degree lasers as you can just set it up once and leave it in the middle if the room rather than having to set up control lines and move the unit around as I have to do with the GLL30. An example would be one like this:
https://www.amazon.ca/Green-Laser-Level-Degree-Indoor/dp/B07KVG6Q7Z/