The DS413j is ugly, yes. I wouldn't want one for the same reason, to be honest. I suspect they do that on purpose to make people want their higher-end models more.
Since I've already outed myself as a Synology fanboy, I may as well point out the Synology DS713+.
Since you're considering starting with only 2 drives, this might be the ideal device for you. It has a dual-core 2.13GHz x86 and 1GB of RAM, so it's just as fast as the more expensive models like the DS1512+. It only has 2 bays to start out, but like the DS1512+, you can expand it with either a 2-bay or 5-bay add-on later if you want to go up in number of drives. With a 5-bay expansion, it supports a total of 7 drives.
(A short guide to Synology model numbers:
The last two digits are the model year, so x13 are the 2013 model year and x12 are the 2012 model year. The number before the model year is the most number of drives it'll support. So the DS713+ supports 7 drives total, even though it only comes with 2 bays, because it also supports the 5-bay add-on. The 1512+ supports 15 drives total, because it has 5 bays and can support two 5-bay add-ons.
A "Plus" model, like the DS713+, usually has an x86 CPU. A "j" model, like the DS413j, is a budget model with a lower-end ARM.)
The DS713+ is also a lot cheaper than the DS1512+ too ($599 vs. $839 on Newegg). Or you can get last year's DS712+ (same specs, except with a single-core 1.8GHz x86) for $499. I actually bought a DS712+ a year ago, and I'm very happy with it. The dual 3TB drives in RAID 1 are incredibly fast, and since I've been mainly storing MKVs it's all I need at the moment.