The Babylock Tiara is the same as the Handiquilter Sweet 16- it appears they've just licensed it for their name. You'll find lots of reviews of the sweet 16.
For me- I thought it was fun but I could not justify the cost when I quilt very well on my Bernina 430. I didn't like the stitch regulator though (I don't like Bernina's either). I thought it was easier to quilt without it.