Coilovers

I bought my car lowered with Eibach Sportline series lowering springs. Now winter is coming up and I don't know if it can handle the snow because it is lowered a nice amount than any other car ive seen in my area. So yea, about coilovers, you can lower in the summer and raise in the winter. Any advise on what kind to get or if I should even get them? ANY ADVISE IS APPRECIATED. I dont know anything about these things. Also, expected price to pay, cons, pros? ANYTHING, thanks guys, i know im a newbie with a lot of questions, but thank you