I followed the pattern, except that I alternated rows of DC and TRC rather than doing all TRC.

Using an H hook,
I did alternating rows of Dc, ch1 across and TRC, Ch1 across beginning and ending with a DC, CH1 row
I did 103 rows, folded in half and joined as in pattern on the back side for 25 Rows

Neck Border SC around for first row, DC for second row, HDC for last row around.

Border for the other unfinished edges:
Row 1: SC around for the first row.
Row 2: DC around for the next row,
Row 3 DC, CH 1, DC, around.
Row 4: DC around
Row 5: SC around

I love the versatility of this pattern. Will be making more!