When comparing SF Launcher 2 vs Lightning Launcher eXtreme, the Slant community recommends Lightning Launcher eXtreme for most people. In the question“What are the best launchers for Android?” Lightning Launcher eXtreme is ranked 16th while SF Launcher 2 is ranked 51st. The most important reason people chose Lightning Launcher eXtreme is:
You can choose a grid of any size or drop the grid completely and arrange everything freely on the canvas. It even comes with its own scripting language if you want to completely customise any aspect of the launcher.
Specs
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Pros
Pro Easy to use, card-based interface
The home screen is organized into cards that can be scrolled vertically. Cards can contain widgets or collections of apps. Swiping from the left gives access to all apps and swiping from the right gives access to all widgets. These can then be added to the homescreen. It's possible to customize the order, color, transparency, size and what how much information or apps a card displays.
Pro Clean, material design inspired aesthetic
The look of the launcher is inspired by Android 5.0 Lollipop and material design. It follows material design color scheme, has a card-based layout and a Google Now-like, header with a stylized image of a city at the top of the homescreen that changes throughout the day.
Pro Highly customisable
You can choose a grid of any size or drop the grid completely and arrange everything freely on the canvas. It even comes with its own scripting language if you want to completely customise any aspect of the launcher.
Pro Supports icon packs
specify per item - icons from packs can be set as foreground or background icons and can be scaled independently.
Pro Great themes available

Pro Small Memory Footprint
Depending on how how in-depth you customize, a bare-bones launcher experience uses very little memory.
Pro Practically unlimited number of desktops
By utilizing folders users can create what are essentially mini desktops with each one.
Pro Desktops can be greater then the visible area, allows for panning around
Pro How-to videos available
The developer, Pierre Hébert, provides YouTube video guides.
Cons
Con Interface is not optimized for widgets that can be scrolled
Since the interface is based on vertical scrolling cards, widgets that can be scrolled (like a calendar widget) can get in the way of easily scrolling through the list of cards. It is possible to turn off widget scrolling in the settings to avoid these issues, but limits functionality of widgets.

Con High learning curve to fully customise
It will take a lot of time and patience to perfect your screens to exactly what you want. You can, however, download and build off of other users' models. The dev provides several YouTube how-to guides as well.
