Looking at both of them I'd be a bit concerned about chemicals. Neither of these are flagged phthalates-free, so you'd want to use them with a condom, and maintenance would be a bit more involved than your rubber dildo.
Have you considered an O2 or VixSkin toy? They are real-feel and silicone, so you can easily clean them, don't have to worry about chemicals getting into your system, and they'll last longer. The real-feel silicone toys generally aren't that big, and they're a bit more, but in my view worth it. (the Vixen Outlaw is at least as big as the Chris Wide).