Ozzy, which PE model do you have?
I purchased a couple PE and one PE III about a year ago, and I returned them for a refund, much to the chagrin of Alan. According to him, I'm about the only customer to return one of his products.
Later, I purchased an AM Reference Power Center V2, which replaced a Shunyata Hydra 2 and Purist Dominus Ferrox power cord (the RPC V2 has a captive cord). Alan pretty much didn't want to sell to me because of my earlier return (his return policy notwithstanding). But, we came to an agreement, and I essentially decided I would sell the conditioner rather than return it if it didn't work out.
My system sounds the same with the Alan Maher RPC V2 as it did with the Shunyata/Purist combo, and I was able to save some money while adding many more outlets, so the AM RPC V2 has been a good addition, although I can't say I have had an "Ah-Ha!" moment with the AM conditioner.
I can say it does no harm.