That's not really the best suggestion in my opinion.
And that is the first time I've ever heard anyone imply that the 901 is not good quality.
Well you might want to try relating your own experience with the DSE901/RN4075 rather than what you heard.
Here's my experience:
One entire black RN4075 startup kit in the trash after a couple of weeks--one battery failed when I dropped it on the ground--I suppose one should take SPECIAL care not to do this
All but one atty from two silver RN4075 startup kits in the trash after a few weeks. But at least one atty and the batteries have held out for over four months. So I can still "kind of" recommend the silver RN4075 at Totally Wicked.
Two white real DSE901 startup kits with attys that produced very weak vapor and batteries that lasted less than a few weeks. I can't even remember vaping the things because basically none of the attys worked. Soaking them in coke dissolved the paint on the attys
Another five spares of white real DSE901 attys from a different source produced very weak vapor.
A manual switch DSE901 battery did not provide enough power to get decent vapor.
A manual switch USB passthru for the the DSE901 did not provide enough power to get decent vapor.
If I have damaged 901/RN4075 batteries by overfilling or dropping the DSE901/RN4075, then I should have damaged batteries by overfilling or dropping the other many ecigs I've tried. But I haven't seen any of them show these weaknesses.
I've made three attempts to resurrect my RN4075 and DSE901 hardware. Every time the hardware ends up back on the shelf, in favor of the much more reliable JOYE 510 or RN4081.
Hope this will help you to take others' opinions with a grain of salt.

Dave