You'll be glad you got it. Very versatile and you can expand it if the need arises. The Transport series is probably a little better rack, since it has the ratcheting front tire mechanism. I looked at one in the store but couldn't justify spending the extra $$$. The spring loaded mech. on the Mod series works just fine for me. Funny thing though....I have have seen a couple reviewers that downgraded the Mod series because they thought it was "too hard" to get the spring arm up over the front wheel.
They must be major Wussies, because i think most Grandmothers could do it. As a general rule, if you aren't strong enough to pull the arm over the front wheel you should probably not be out cycling.