Here's a comparison between the Z410's older variant and the very good SP550 SSD.
http://ssd.userbenchmark.com/Compare/SanDisk-Z400s-256GB-vs-Adata-Premier-SP550-240GB/m34116vs3623
The Z410 is about 15% faster on average vs the SP550, and is a very good value buy given the budget.
Ryzen also has proven to have some trouble with higher frequency memory designed for Intel's DIMMs in recent testing, the Flare X kits are designed for Ryzen, and the only higher frequency kits that were good value were a Team kit (not very good quality) and a G.Skill Aegis kit.
It's a personal choice, you don't have to follow it or make silly remarks, each to their own.
If you wanted an improvement on your build though, see this.
I should also like to mention though that the 1080 Turbo bottlenecks like crazy due to thermal throttling.
Spend a bit more on a better GPU.
A 120GB SSD also isn't enough, 240GB should be the minimum, especially given the budget.
The 240GB Z410 performs about the same as the 500GB version of the drive you listed (Much faster variant) if you wanted a speed comparison.
PCPartPicker part list /
Price breakdown by merchant
CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor ($218.55 @ OutletPC)
Motherboard: Gigabyte - GA-AB350M-Gaming 3 Micro ATX AM4 Motherboard ($88.98 @ Newegg)
Memory: G.Skill - Flare X 16GB (2 x 8GB) DDR4-2133 Memory ($98.88 @ Newegg)
Storage: Sandisk - Z410 240GB 2.5" Solid State Drive ($77.35 @ Jet)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.45 @ OutletPC)
Video Card: EVGA - GeForce GTX 1080 8GB FTW DT GAMING Video Card ($504.98 @ Newegg)
Case: Corsair - Carbide Series 88R MicroATX Mid Tower Case ($44.99 @ Newegg)
Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($39.99 @ Newegg)
Monitor: AOC - AG271QX 27.0" 2560x1440 144Hz Monitor ($396.99 @ Best Buy)
Total: $1518.16
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-05-08 09:23 EDT-0400
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In regards to your comment:
"i'd give up for today if i were you! haha seriously 2133mhz ram with a ryzen cpu ? and a sandsik ssd! come on you can do better than that !
"
Lose the attitude mate, don't be childish.