The DB160 definitely isn't bad for the price. It's unfortunate they set cell cutoff so high, so it doesn't last much longer than a good single cell box and the TC is not great. But considering its price point not bad at all.
The Rebel mods are leagues better, smaller lighter more capable and probably even more durable. But for seven times the price it's like comparing a moped to a BMW motorcycle. And the moped will still get you there. Honestly, who do you think sells more units, the Moped maker or BMW?
Besides, I'd never recommend jumping into the premium end before trying something affordable and knowing if you'll even like it.
So all around good choice. Congratulations!