Gorsuch has a short record on the bench, and its been mixed. He's done some things I like (stood up for religious freedom & against euthanasia) , and plenty of things that give me pause (immigration, abortion, gay rights, etc.) Many of his left-leaning rulings are precisely why leftist slime like the New York Times and Obama's "ethics" czar are praising the pick and urging Senate Dems to confirm him, hoping he will be a stealth leftist (see Why Liberals Should Back Judge Gorsuch by The New York Times ) Like many "stealth nominees", he hasn't handed down any earth shattering decisions on any major precedents. Roberts a similar "unknown" quality, but whose background was far more conservative than Gorsuch.
The evidences suggests if Gorsuch is confirmed, he will vote similarly to Sandra Day O'Connor. For a judge replacing Scalia, that's a HUGE downgrade and would significantly move the court to the left.
Don't say you weren't warned.
Gorsuch has an excellent record. He was considered to be at or near the top of President Trump’s list.
What don’t you like on abortion or immigration?
Judge Gorsuch rules on the the law, and not on his personal views. That’s what Scalia did. He seems to be an originalist, and he has a record to back that up — far more of a record than O’Connor, Souter, or Roberts had. (BTW, I am proud to vhe opposed all three of those nominations.) This is no stealth nominee.