Has anyone bought salvage title cars?

Hi guys! I'm going to buy a salvage 323i. If anyone here dealt with buying salvage title cars (or simply knows some information) I have some questions - what kind of damage did the car have and did you have any issues with it after you repaired it? Also, was it very difficult to resell the car afterwards? Here are some cars I'm choosing from at the moment, would you buy any or better to look for something else? Thank you all in advance!

http://ift.tt/ORCV1c

http://ift.tt/ORCWlT

http://ift.tt/ORCWlV

http://ift.tt/1ffojiz;

http://ift.tt/ORCV1m