Unless you're doing mostly surface mount, the T245 has more tip options, including very fine s/mount tips. The T210 is just much
smaller and lighter. There are many tip options as well. You can interchange handles, including tweezers.
If you follow their links, you'll find master parts reference / inter-changeability charts. I have all the models and each has it's own strengths.
Unless you're wanting to save a huge amount, I wouldn't bother looking at other options. IMO, and many others, JBC is as good as you can get.
YMMV