Pro Amazing build quality
The MacBook Pro has an all-aluminum body that looks great and is sturdy enough that worries of accidentally damaging are mostly alleviated. It has a robust lid, well-spaced back-lit keyboard with speakers on each side of the keyboard and an excellent button-less trackpad.
Pro One of the best SSDs that can be found on a laptop
With read speeds at 3.1Gbps and write speeds at around 4.7Gbps, the SSD used in the Macbook Pro is the best in the market by far. This doesn't just mean opening/saving files is quicker, but it also has a pretty huge impact on general application performance.
Pro The OS is exceptionally easy to use
Macbooks are famous for working out of the box. The default operating system (macOS) is also exceptionally easy to use even for people who have never used it before. Most people will not need to customize or change anything since all the apps just work out of the box.
The people who like to customize things and tinker with their systems will also find it pretty easy to do so, considering the fact that macOS is a Unix and allows varying degrees of control to users.
Pro Both the hardware and software are designed in-house
Both the operating system and the hardware are designed by Apple and are made to be as compatible as possible from the get-go. Any drawback that the hardware might have compared to competitors, is made up by the great compatibility between the hardware and OS.
Furthermore, because Apple controls the hardware that goes inside their laptops, they can be sure that every OS release will be fully compatible even with their older hardware, ensuring software compatibility for many years after the laptop is released.
Pro The default macOS is very developer friendly since it's a Unix
OSX is based on XNU (Darwin) kernel, it's certified Unix and arguably a lot more developer friendly than Windows. Development for Unix is native on OS X.
There's a large selection of great development tools available for OSX. The operating system itself comes bundled with a powerful terminal emulator, called Terminal. Additionally, Apple provides tools, like Xcode, an IDE that contains a comprehensive collection of tools for developing OSX and iOS software, for free.
Con Glossy screen
Apple has deleted the matte-screen option from its lineup, an unfortunate decision that reduces the usability of the computers and means you get less work done. You won't realize how much time you spend moving your head around to get reflections off whatever you're trying to see until you switch to a matte screen.
Those "deep blacks" and "rich colors" that you were supposed to get from a glossy screen are not present, since they're buried behind a sheen of reflection under all lighting conditions.
Con The default OS spies on you
Apple spies on its users, and helps others spy on them too. OSX needs to be wiped from the laptop and be replaced with Linux or another acceptable OS before it can be used.
There have also been cases of security issues being reported and not fixed for quite some time. An example is a security issue in iTunes which was left unfixed for three years while it was being used by the government to collect data. These security issues may or may not be intentional, but other data collection is.