Bought a new McIntosh amp

Hello folks !
I just bought a new MC152 and now having doubts about my decision. I currently have Rotel RB-1552 mkII / RC1572 setup driving a pair of Paradigm 800f. I have not opened the sealed box yet because I’m thinking of returning the amp to be exchanged for new speakers (Klipsch) and an Rotel RB-1582 amp (more power 200w p/c).
While at Audio Advice store, I went in another demo room and listened to a Heresy IV driven by a different McIntosh setup ( MC462) and I was impressed but the mind was still on the path of getting the mc152 instead of replacing speakers.
Is it safe bet to just keep the mc152 and get a feel of speaker change later ?
I’d like to hear opinions good or bad about the MC152. Thanks !