I have an Ayotte Custom with 22x18 bass drum, then 8,10,12,14,16 toms.
As with a lot of custom drum makers you get what you pay for, and specify exactly what you want, so in terms of investment the idea is that you wouldnt need another drumkit, unfortunately I can never resist a bargain....
As for sound, the bass drum mic'd is awesome, i've played loads of different kits from the usual suspects (Pearl, Tama as well as your DW's, OCDP, Spaun) and this thing is something else, it tunes dead easy and you can get any sound you want out of it. The toms feel great to play (you ever find kits that just 'feel' right when you hit em?) unfortunately, I havent had them properly mic'd with a decent sound guy yet (only had em a little while) but they project really well.
Another thing Ayotte have kinda made their own is the wood-hoops (although there is quite a few companys that are now using these)Depending on what kinda music you play and what sound you want, these are worth checking out if you can find somewhere to get some sticks near em, really brings out the tone of the tom
If you're struggling to get the full custom job, have a look at their 'pro' line...its the same drums, made the same way, but you buy them as a pre-designed package. You might find your ideal set up is already listed, and will save you a penny or two
Only issue i've had is trying to tune the 16", but I think the only issue with that is because I have the 14" tuned so low (these babies can really rumble) I'm finding trying to get the 16" lower is difficult without it beginning to sound a bit - baggy if you know what i mean.
Love 'em though, great sounding kit and always makes me smile in a sound check