Rogue1 / Bard(sandman)5 / Arcane Trickster

[Shfish]

How useful would a Sandman Bard 5 and Rogue 1 be for an Arcane Trickster build? I know it doesn't get "all" of the full bang out of a AT as say a wizard would, but I was thinking it would do better on the trap/skill end.
Thoughts?

As I see it (just levels, no feats)
1-Rogue - +1d6 sneak attack
2-Sandman 1
3-Sandman 2
4-Sandman 3
5-Sandman 4 2nd level arcane spells
6-Sandman 5 +1d6 sneak attack
7+-Arcane Trickster

[Atarlost]

Bard doesn't have any good spells for the arcane trickster abilities. Your only damage dealing ranged touch is level 5. The reduced BAB is going to ruin you for using your sneak attack any other way.

[Slacker2010]

Not good at all, AT is 1/2 bab. and your spell progression only goes to 6