I haven't seen much posted about this rifle, so I thought I'd give my thoughts.
I purchases an X5 in August through the local Cabelas because I wanted a light, shorter gun to replace my old sidelock carbine (no longer accurate) for woods and standing corn hunting. The selling point for me, beyond the weight and length, was mainly the peep sight. I used to use peeps a lot and actually like them better than scopes for sub-100yds.
I called ahead of the 1-hour drive to ensure they had some in stock, and was assured they did (2). IN typical Cabelas fashion, however, when I arrived I found they'd pulled the peep sights and installed cheap $30 scopes on even cheaper rings. After some arguing, they said they'd "do me a favor" and put the peep back on (how is restoring a gun to factory, ADVERTISED condition a favor??). After more then 3 hours, I finally left with the gun.
I must say I was very impressed with the fit and feel of the gun. When compared to my 3 year old thumbhole Omega, this one was about 2-3 inches shorter and had a better recoil pad. The trigger is improved and lighter, and the trigger guard shape has been improved. Weight is noticeably less, easy to carry in one hand for a long hike.
In addition to Cabelas, I soon developed a beef with T/C. When I tried to sight the gun in, I was pleased that 100gr 777 FFg plus a 250gr Shockwave produced nice tight groups.... off the paper high at 30 yards. I bottomed out the rear peep and was still 9 inches high at 50 yards. It appears they decided to offer the peep for Colorado elk purposes, but didn't bother to test-fire the setup? Inspection revealed no problems with the sight mounting. I like the Omega design, but I had to eat shipping TWICE with my last Omega shipping it back to fix a defective stock.
To their credit, when I called customer service they promptly shipped me a taller front sight (the lack of discussion makes me wonder if every person that has bought one has called in with the same complaint). I haven't had it back out to shoot yet, but the problem will obviously be resolved and I already know the gun groups well. Overall I'm pleased with the gun and look forward to hunting with it this fall.