I work for a large rental company, and while these are good lifts, they aren't built heavy enough to be used for full time tree service use. They are primarily designed as Atrium lifts, and can typically be driven through a double door entrance, for working in a high ceiling atrium like you would have in a large hotel or hospital. Ideal for hooking up sound systems, lighting work, ect. The only thing that mobile that I would even consider would be a tow behind boom, such as the 40-50 foot units offered by Genie, JLG, & Biljax/Huloute. These can be used for tree work, but you would have to be extreemly carefull to not let any limbs or tops so much as graze the lift when falling to the ground. Compared to a full size AWP or Bucket Truck, the track that protects/guides the hydraulic lines and control harness are very light weight, and offer very little protection for the lines within. Worse yet, the very lightest impact on them breaks the plastic track, which is a manufacturer only part, to the tune of several hundred $. If you have any lift questions regarding specific makes/models, feel free to shoot me a PM. Not too well versed on truck mounted units, but the driveable stuff I deal with every day.