Waxman faucets

Has anyone any experiences with these types of faucets?
For various reasons I went ahead and purchased an Aqualife kitchet faucet from them and now I'm wondering if I just screwed myself or will everything work out.
Basically it's to replace a $20 dollar Delta cartridge faucet that busted on me after 3 months, to replace the original faucet that had been there for 50 years.
Anyway, off to Lowe's to get a cap for the sprayer attachment pipe, the Aqualife faucet didn't have a cap for it and since my sink doesn't have the hole for the sprayer I can't use it.
I'm a little leary of the faucet, since 1) They didn't provide a cap for the sprayer pipe. 2) They didn't document anywhere how large the supply pipes are (I'm guessing 1/2"???) 3) It's washerless, so I'm wondering if it will leak like a sieve.
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