The 'behind-cell-connect' panels are very fine. At least 15% more efficient by area.
Last time we got them we shopped online from SVB. You will likely find a supplier closer to your place. They ARE more expensive too.
Otherwise, our brand new China
made panel matches the output of our Neste quality panel.
I would only buy the more efficient panels if space is at premium.
You may have read one of Chinese makers went belly up, so possibly prices will go up for a time till someone fills the void.