This keyboard is AMAZING. It compliments the Samsung Galaxy S9 Ultra very well. As someone who is very particular about the typing experience on a keyboard, I can tell you first-hand that typing on this keyboard is an absolute joy. I could type on this thing all day! The adjustable RGB backlighting is a huge plus for working in dim or dark environments. The trackpad is also very good; if your's seems slow at first, go into the mouse/trackpad settings on your device and speed up the pointer speed, and toggle OFF the "enhance pointer precision" button. Doing the above steps seemed to greatly increase the experience of the trackpad.A few notes for potential improvements: As others have mentioned the rear backing is quite heavy, I've found it fatiques my supporting hand while using as a regular tablet on the couch. I assume this weight is from the magnet that attachs the rear backing to the tablet. Another thing is I wish the magnet that attaches the keyboard to the tablet was stronger, it suffices fine, but I am very cognizant of its weakness when carrying and/or typing on an uneven surface like a pillow. Next the feel of the material/skin that covers the device is fantastic, but it is a magnet for fingerprints and hand oils; I just hope the material holds up. Lastly, I wish there was a strong magnet, a latch, SOMETHING to keep the device securely shut while closed or carrying. I NEVER leave the tablet side facing my fingertips/waist when carrying like a book, it is always secured against the palm of my hand with the keyboard side facing my fingertips/waist. I do this because if the magnet were to fail, I'd much rather the keyboard take the fall than the tablet. Other than those very minor points, I think this is a fantastic keyboard, and I highly recommend! It is a very well made product and a fraction of the cost of the tablet's manufacturer's model.