First of all I am a long time Apple user and I must say my MacBook pros, ipads, and iphones, generally just work like they are supposed to. Apple is not without their own quirks but they generally get fixed in a reasonable amount of time. Secondly, I do work on windows machines and support many offices with their server and workstations. Thirdly, the only reason I am venturing into the windows world personally is because of the need of Windows OS to program home theater remotes and automation equipment for my business. I have been using Parallels on my MBP to run windows but have been running into more and more problems lately with the usb ports connecting leaving me unable to complete programming on jobsites. I thought I would just buy a cheap laptop to accomplish my programming but I know from experience that anything less than an I5 is useless. I also would like to have a work carry around device to take handwritten notes on and do my programming. This type of device is something that Apple does not have in their arsenal of toys. So I naturally levitate to the Surface devices. Last year when my aging 7 year old MacBook Pro needed replacing I got a surface pro 3. With all of its problems last year, it could not replace my MBP. I returned to SP3 and got another MBP. Everything was great again. This year with my Parallels/USB problems and the launch of SP4, it felt like the time to try surface again. I bought an SP4 M3 and set it up with all updates and my software. I started using it for casual web browsing and movie watching and quickly realized the battery was draining like a water bucket with a hole in it. I then went and got a SP4 I5 and the battery is better but still only like 4 to 5 hours. Next I also pickup a Surface Book. The SB naturally has longer battery life due to its larger battery capacity. Now everything gets confusing. I like the ease of use of the SP4 by easily removing or folding the keyboard to take notes. With the Surface Book I have been just leaving the clipboard detached while driving between jobsites taking notes and only putting it on the keyboard base when I need to do programming. Its funny how the small battery of the SB clipboard has been holding its own against the SP4. The SB clipboard is very well balanced and FEELS almost twice as light as the SP4 in tablet mode. I considered getting an DC to AC inverter and plugging in either machine while driving between jobsites to keep them topped off. If I keep the SB I feel that I will be using the tablet mode more that designed and worry about the life of the mechanical muscle wire locks. It is just highly aggravating that a product like the SP4 has so many problems ***** internet explorer has stopped working****** Geez as I wa s typing this IE stopped working and crashed on the Surface Book. Luckily when I logged back in all of this typing was still here. All of this is just pathetic. I feel like I am settling on the SB just to get real usable battery life. I feel like I could just get an iPad Pro with the Apple pencil for notes and drawings and $400 laptop. Another option would be to go back to the Yoga pro 3 with its crappy track pad and real world 6.5 hour battery and a surface 3 for notes. Its all up in the air!! Frustrated and tired of it all.