Don’t buy Expensive rectifier tubes for Primaluna before trying these

Hi Everyone,
Just wanted to let you know that after trying  many rectifier tubes all nos I have been pleasantly surprised by the 5T4 tube which is not only affordable but definitely enhanced the performance of my primaluna pre and power system. I would be interested if anyone has tried them and their impressions.
My system now sounds looted detailed and more realistic and definitely less harsh sounding especially with old CD recordings.. I now do not think I will seeking any other variants for rectifier as I love the performance of this tube.