I have plenty of refurbished products and have never had a problem with them. Not to say that it wouldn't be a problem but just sayin..
BTW, IMHO, a lot of "refurbished" products are sold just to clear stock or to cut the warranty cost. For example I got a looks to be brand new Dyson vacuum without the glossy box and with an 18 month instead of 5 year warranty for 40% off just retail recently.
Back in stock, buy it quick!
I didn't get one of these but I did get a refurb Ooma Telo. Nice!