I'm running a Windows 10 laptop set up at the moment, but the processor is made for long battery life rather than grunt, and I'm looking at secondhand i7 Macbook Pro Retina 15's in the price range I can afford. (I've considered other models such as the higher end Lenovos, Dells, but the MBPr seems to tick all the options for grunt and portability with a nice screen, for the same budget). Would like to hear feedback from other MBP/MBPr users. Did you switch from Windows, and how was that? Did you find you needed to get Parallels or is Bootcamp okay? I'm looking at a MBPr 15 with the i7 3720QM, 8GB RAM, 512GB SSD. Any feedback on this as to your experience with it? I've noticed some MBPr's have scratches on the screen from dust/dirt which causes white spots. Is this annoying and best to avoid buying one with that problem? For those who switched from Windows, any regrets? I have a mix of m43 and FF systems and process raw photos in LR CC. The 24mp FF files are largest but I shoot with it much less. It's all hobby kind of work, I've stopped doing paid photography several years ago. I've a small child and limited ish budget. Current set up is: Lenovo X1 Carbon laptop, 14" 1600x900 (75% of sRGB), 256GB SSD which is where the catalog and previews are. I have this hooked up to a Dell 27" wide gamut monitor and kind of docked using USB3. It works well and the laptop is amazing, there's little I'd change about it for portability/non photo work, but the processor is an i5 3427U and that's just not cutting the mustard when it comes to Lightroom. All my photos are on a NAS connected over wired gigabit. I thought about upgrading this, as I know there are newer and faster options, but when I checked how long LR actually spends reading/writing to the NAS it was minimal. The time spent with all CPU cores at 100% as far more significant. To confirm I need a faster processor I copied my LR catalog onto a work Windows laptop with an i7-4800MQ, connected it to the NAS where my photos were, and did some side by side speed tests at the same screen resolution. The i7 laptop, despite not having SSD, flew through photos and made LR feel super snappy. Thanks for any advice/experiences shared!