Yes, the LTA preamp is something I will never give up. You don't have to ever worry about tubes. LTA claims that they will last 6-10k hours. You can get a new complete set of tubes for $200 and they are easily found.....but if your a tube roller and want to experiment you can get some real pricey ones and try them out as well. As far as my favorite characteristics of the preamp I would have to say the incredible holographic imaging, an incredible depth to the soundstage and rich organic tones....not to mention that it is deep space silent. LTA offers a trial period so you can give one a shot without risk. They are great people over there.