SVS sub owners, Past and Present

I’d like to hear from (like the title states) SVS owners,past and present about what you DIDN’T like about the subs.  That’s correct,I’m looking for any issues you had with this brand of subs.  I am thinking about making a purchase,( I’m well aware of their generous return policy), but instead of hearing all the praise, let’s get to the nitty gritty.  With all due respect,I’m not looking for opinions, I’m only looking to hear from real live,hands on owners.  
 

     Thanks in advance,

          Ray