You can, but given the mixed reviews from actual Zenefits customers on here and elsewhere they aren't there yet.

I liken it to tech's war on banks. Everyone loves to make fun of the fact that banks still use "old" technology like mainframes, but when was the last time a bank went down? I will go with a old school bank over a NewCo tech bank any day when it comes to nontrivial things like storing my money.