Slider pro is a very good slider, well-developed, robust, mobile-friendly in terms of image resizing, and wins second (just short of Soliloquy) in terms of loading speed when compared with 5 other sliders. Slider Pro has a great preview feature that makes it easy to adjust the various parameters. You do not even need to save your work before previewing. It just works. This is a huge plus. Where it fails is if you use it to display your posts, then the post title (and other text) is not rendered well on mobile (pretty much unreadable). Slider Pro has many adjustments! Please see below.
Slider Pro (Demo 1)
Basic slider (no lightbox).*
*Uses images 500 x 600px (optimized)
Slider Pro (Demo 4)
Same slider as above, but uses slightly different configuration. Image sizes scale well on mobile phones but do not use it to display posts as the text becomes almost unreadable on mobiles.
Full width slider (attempt)
This is our attempt at producing a full width slider using Slider Pro, but in our opinion, it's not designed as a full width slider and has problems. We've noticed that sometimes the images disappear when trying to use it in this configuration. Also, we specified the slider distance (from image to image) as being 1 pixel, but it didn't work. That's probably because it's also set to auto-size. You'll notice that sometimes it maintains the 1px distance between images.
Adjustments that can be performed on each slider.
Slider Pro Verdict
Slider Pro is a great slider all around. It's very well designed, is very fast loading, and has a really nice preview feature that makes it really easy to configure. We now turn you to Soliloquy, which wins the fast loading competition by 98ms. After this, we present Smart Slider, which is ideal as a full-width image slider.