Don't have any expeience with the Barrio reel but own four Marksmen reels.
Never had an issue regarding the line rubbing on the bar. I can see what people mean but the line rubs on the rings on the way through doesn't it

.
As for the bearing problem (I have 2x 3/4, 1x 2/3 and 1x 4/5) I read about this before I bought my first one and was wary. Soon as I got it home I stripped the reel and removed the thin straggly smear of grease the manufacturer had applied. Looked like half a job to me! I then applied some fresh grease using a matchstick to force/smooth it down well into the bearing. Finishing off by leveling it on top of the bearing. Next a very
light strand on the spool side, don't want it spewing out onto the line

.
That took care of that side. Next I did the same to the other side of the bearing smoothing off again. In the knurled nut is a groove/shoulder that mates up with the bearing when tightened-another thin worm of grease and job done. Never had a problem and don't expect one!
Sure, I should not have to address the problem, should have been done properly in the first place but hey-ho a stitch in time eh

.
Very pretty little reels, practical and simple. Oh and very cool

. I've unintentionally given them a dip before now but I know the seal is good so no worries. Conversely if I dunked it into deep soft mud I would stop fishing rather than risk contamination. Common sense really.
With a little effort/preventative maintenence the smaller sizes in my experience are sound and a delight to use.
Chris.